Appendix C (File 1 of 3) CORE Data Matrixes.xlsx

Source Selection Information

Tab1a - Core Basket Technical DRU-26474 BAE-STANDARD REPORT || Tech and Supply || Created: 05-Dec-2019

NIIN FSC Nomenclature AMC 0:

Acquisition Method Code (AMC)

0 Not established.

1 Suitable for competitive acquisition.

2 Suitable for competitive acquisition for the first time.

3 Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer.

4 Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer.

5 Acquire only from the prime contractor although the engineering data identifies the CAGE and part number of a source other than the prime.

AMSC

0: Acquisition Method Suffix Code (AMSC) 0 Not established.

A Government's rights to use data in its possession is questionable. Valid AMCs: 1, 2, 3, 4 and 5.

B Acquisition of this part is restricted to source(s) specified on: Source Control, Altered Item or Selected Item drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

C This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

D The data needed to produce this item from additional sources is not physically available.

Valid AMCs: 3, 4 and 5.

G The Government has unlimited rights to the technical data, and the data package is complete.

Valid AMCs: 1 and 2.

H The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). Valid AMCs: 1, 2, 3, 4 and 5.

K This part must be produced from class 1A castings (e.g., class 1 of MIL-C-6021) and similar type forgings. The part must be procured only from sources which use castings or forgings obtained from approved (controlled) source(s). Valid AMCs: 1, 2, 3, 4 and 5.

L The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). Valid AMCs: 1, 2, 3, 4 and 5.

M Master or coordinated tooling is required to produce this part. This tooling is not owned by the Government or, where owned, cannot be made available to other sources. Valid AMCs: 1, 2, 3, 4 and 5.

N This part requires special test and/or inspection facilities to determine and maintain ultra-precision quality for its function or system integrity. Substantiation and inspection of the precision or quality cannot be accomplished without such specialized test/inspection facilities.

Valid AMCs: 1, 2, 3, 4 and 5.

P The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.

Q The government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.

R The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them.

Valid AMCs: 1, 2, 3, 4 and 5.

S Procurement of this item restricted to limited source(s) because security classifiation of confidential or higher prevents public disclosure. Valid AMCs: 1, 2, 3, 4 and 5.

T Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.

U The cost to the Government to breakout this part and acquire it competitively has been determined to exceed the projected savings over the life span of the part. Valid AMCs: 1, 2, 3, 4 and 5.

V This part has been designated a high-reliability part under a formal reliability program.

Probability of failure would be unacceptable from the standpoint of safety of personnel and/or equipment. The cognizant engineering activity has determined that data to define and control reliability limits cannot be obtained nor is it possible to draft adequate specifications for this purpose. Valid AMCs: 1, 2, 3, 4 and 5.

Y The design of this part is unstable. Engineering, manufacturing, or performance characteristics indicate that the required design objectives have not been achieved. Major changes are contemplated because the part has a low process yield or has demonstrated marginal performance during tests or service use. These changes will render the present part obsolete and unusable in its present configuration. Limited acquisition from the present source is anticipated pending configuration changes. Valid AMCs: 1, 2, 3, 4 and 5.

Z This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.

CSI

0:

Critical Safety Item (CSI) derived from Special Procedures Code (SPC)

SPC Service 03 CSI-Navy 05 CSI-Army 06 CSI-AirF (Air Force) 07 Chem-Bio (CBDE)

SPC

0:

Special Procedures Code (SPC)

01 - AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT (ALRE)

Navy Carrier and Carrier training

02 - INDIVIDUAL REPAIR PART ORDERING DATA (IRPOD)

Items within the Navy Nuclear community with Specific Tech data needs identified in a bi-monthly IRPIL (Individual Repair Parts Issue List)

03 - NAVY IDENTIFIED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

04 - INTERCONTINENTAL BALLISTIC MISSILE (ICBM) ITEM

Air Force defined items, also called NUCLEAR HARDENED

05 - ARMY DESIGNATED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

06 - AIR FORCE DESIGNATED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

07 - CHEMICAL BIOLOGICAL DEFENSE EQUIPMENT ITEM (CBDE)(CSI)

U.S. Army Edgewood Chemical Biological Center (ECBC)

97 - EDGEWOOD CHEMICAL BIOLOGICAL CENTER

U.S. Army Edgewood Chemical Biological Center (ECBC) note: ALL NSNs which have an SPC of ‘03’,‘05’ or ‘06’ are considered FSI.

FSI items will not necessarily be an SPC of ‘03’, ‘05’ or ‘06’.

PIC

0:

Place of Inspection Code (PIC)

1 Inspection at Source / Acceptance at Source 2 Inspection at Destination / Acceptance at Destination C Inspection at Source / Acceptance at Source (used for Critical application items) 3 Inspection at Source/ Acceptance at Destination (used for Hazardous Materials) 4 Inspection at Destination/ Acceptance at Source (used for Hazardous Materials)

QCC

0:

Quality Control Code (QCC)

QCC -- First Position (Contract Quality Requirements) A Contract Quality Requirements further defined.

Material Master - Additional Data - Internal Comments B Commercial (Any System Offered) C Contractor Responsibility D Standard Inspection E Higher Level Contract Quality F Higher Level Contract Quality - ISO 9001:2000 G Commercial - First Article Testing Government H Contractor Responsibility - First Article Testing Government J Standard Inspection - First Article Testing Government K Higher Level Contract Quality - First Article Testing Government L Higher Level Contract Quality ISO 9001:2000 First Article Testing Government M Commercial - First Article Testing Contractor N Contractor Responsibility - First Article Testing Contractor P Standard Inspection - First Article Testing Contractor Q Higher Level Contract Quality - First Article Testing Contractor R Higher Level Contract Quality ISO 9001:2000 First Article Testing Contractor QCC -- Second Position (Quality Subsystem Identification) A No Quality Subsystem Requirements B Product Verification Testing (PVT) C Measurement and Test Equipment (M/TE) D Certificate of Conformance (CoC) E Product Verification Testing / Measurement and Test Equipment (PVT / M/TE) F Product Verification Testing / Certificate of Conformance (PVT / COC) G Product Verification Testing / Measurement and Test Equipment / Certificate of Conformance (PVT / M/TE / COC) H Measurement and Test Equipment / Certificate of Conformance (M/TE / COC) QCC -- Third Position (Quality Specific Identification) A No Specific requirements B Calibration System Requirements C Quality Assurance Letter of Instruction (QALI) D Pre-award Survey E Post-award Conference F Shelf Life - Depot Storage Standard Actions G Statistical Process Control (SPC) H CIM/IMQIP Controlled Industrial Material / Industrial Material Quality Improvement Program J Deliverable Data - DD 1423 K Two or more codes apply L Local Clause(s) apply M One or more codes and local clause(s) apply N Dermatology and Toxicity (DSCP Medical use) P Additional Requirements - Material Master Additional Data - Internal Comments

AAC

0:

Acquisition Advice Code (AAC)

A Service/Agency-regulated.

B Inventory Control Point (ICP)-regulated C Service/Agency-managed.

D DoD Integrated Materiel-managed, stocked, and issued.

E Other Service-managed, stocked, and issued F Fabricate or Assemble.

G General Services Administration (GSA)/Civil agency.

H Direct Delivery under a central contract.

I Direct Ordering from a central contract/schedule.

J Not stocked, centrally procured.

K Centrally stocked for overseas only.

L Local Purchase.

M Restricted requisitions-major overhaul.

N Restricted requisitioning-disposal.

O Packaged fuels.

P Restricted requisition-Security Assistance Program (SAP).

Q Bulk petroleum products.

R Restricted requisition-Government Furnished Material (GFM) S Restricted requisitioning-Other service funded T Condemned.

U Lead service-managed.

V Terminal item.

W Restricted requisitioning-special instructions> X Semiactive item-no replacement.

Y Terminal item.

Z Insurance/Numeric Stockage Objective item (NSO).

AMPL Count Henry J. Murray Jr.:

How many AMPL references are there for this NIIN?

RNVC 1

0:

Reference Number Variation Code (RNVC) Code indicates that a cited reference number is item identifying, is not item identifying, or is a reference number for information only.

1 - A design control reference or other reference number that does not identify an item of production without the use of additional information, or is either a specification, part, type or similar reference number that does not identify an item of supply without the use of additional information.

2 - A design control reference or other reference number that is an item-identifying number for an item of production, or is either a source control reference, a specification or a standard part, type, or similar reference number that is an item-identifying number for an item of supply.

3 - A vendor's reference (part) number on a source control item, as defined in ASMEY- 14.24M and ASMEY-14.100M, which is reparable through the removal, exchange, and reinstallation of component parts. The related source control document number will also reflect the code 3. This code is limited to a type 1B or 4B item identification.

8 - A non-item-identifying reference number that is added to a replacement NSN as a result of a cancel-use action on a NSN recorded with ISC 3 or E. It is used to indentify the original item of supply/replaced item. This reference number is automatically moved and this code is automatically assigned, do not submit for cataloging purposes.

9 - A reference number which was the Design Control Reference for the item of supply concept (Original Design Activity) that is now inactive coded Reference Number Category Code (RNCC) 3; a specification, standard, or other reference number which is superseded, cancelled, obsolete or discontinued and is coded RNCC 5; a reference number for information only coded RNCC 6; a drawing which is the Single Controlling Reference Number (SCRN) coded RNCC 2 or 7; or a drawing number reference coded RNCC D.

RNCC 1

0:

Reference Number Category Code (RNCC) Code that designates the relationship of a reference number to the item of supply.

1 - Source Control Reference.

2 - Definitive Government Specification or Standard Designator Reference.

3 - Design Control Reference.

4 - Non-definitive U.S. Government Specification or Standard Reference.

5 - Secondary Reference.

6 - Informative Reference.

7 - Vendor Item Drawing Reference (formerly specification control reference).

8 - US/NATO-Reproduced Item Identification Number.

A - Design Category Packaging and Related Logistics Data Reference Number.

C - Advisory Reference.

D - Drawing Number Reference.

E - Replaced Reference Number.

Part Number 1 CAGE 1 Vendor 1 RNVC 2 RNCC 2 Part Number 2 CAGE 2 Vendor 2 RNVC 3 RNCC 3 Part Number 3 CAGE 3 Vendor 3 RNVC 4 RNCC 4 Part Number 4 CAGE 4 Vendor 4 RNVC 5 0:

Reference Number Variation Code (RNVC) Code indicates that a cited reference number is item identifying, is not item identifying, or is a reference number for information only.

1 - A design control reference or other reference number that does not identify an item of production without the use of additional information, or is either a specification, part, type or similar reference number that does not identify an item of supply without the use of additional information.

2 - A design control reference or other reference number that is an item-identifying number for an item of production, or is either a source control reference, a specification or a standard part, type, or similar reference number that is an item-identifying number for an item of supply.

3 - A vendor's reference (part) number on a source control item, as defined in ASMEY- 14.24M and ASMEY-14.100M, which is reparable through the removal, exchange, and reinstallation of component parts. The related source control document number will also reflect the code 3. This code is limited to a type 1B or 4B item identification.

8 - A non-item-identifying reference number that is added to a replacement NSN as a result of a cancel-use action on a NSN recorded with ISC 3 or E. It is used to indentify the original item of supply/replaced item. This reference number is automatically moved and this code is automatically assigned, do not submit for cataloging purposes.

9 - A reference number which was the Design Control Reference for the item of supply concept (Original Design Activity) that is now inactive coded Reference Number Category Code (RNCC) 3; a specification, standard, or other reference number which is superseded, cancelled, obsolete or discontinued and is coded RNCC 5; a reference number for information only coded RNCC 6; a drawing which is the Single Controlling Reference Number (SCRN) coded RNCC 2 or 7; or a drawing number reference coded RNCC D.

RNCC 5

0:

Reference Number Category Code (RNCC) Code that designates the relationship of a reference number to the item of supply.

1 - Source Control Reference.

2 - Definitive Government Specification or Standard Designator Reference.

3 - Design Control Reference.

4 - Non-definitive U.S. Government Specification or Standard Reference.

5 - Secondary Reference.

6 - Informative Reference.

7 - Vendor Item Drawing Reference (formerly specification control reference).

8 - US/NATO-Reproduced Item Identification Number.

A - Design Category Packaging and Related Logistics Data Reference Number.

C - Advisory Reference.

D - Drawing Number Reference.

E - Replaced Reference Number.

0:

Acquisition Method Code (AMC)

0 Not established.

1 Suitable for competitive acquisition.

2 Suitable for competitive acquisition for the first time.

3 Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer.

4 Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer.

5 Acquire only from the prime contractor although the engineering data identifies the CAGE and part number of a source other than the prime.

0: Acquisition Method Suffix Code (AMSC) 0 Not established.

A Government's rights to use data in its possession is questionable. Valid AMCs: 1, 2, 3, 4 and 5.

B Acquisition of this part is restricted to source(s) specified on: Source Control, Altered Item or Selected Item drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

C This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

D The data needed to produce this item from additional sources is not physically available.

Valid AMCs: 3, 4 and 5.

G The Government has unlimited rights to the technical data, and the data package is complete.

Valid AMCs: 1 and 2.

H The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). Valid AMCs: 1, 2, 3, 4 and 5.

K This part must be produced from class 1A castings (e.g., class 1 of MIL-C-6021) and similar type forgings. The part must be procured only from sources which use castings or forgings obtained from approved (controlled) source(s). Valid AMCs: 1, 2, 3, 4 and 5.

L The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). Valid AMCs: 1, 2, 3, 4 and 5.

M Master or coordinated tooling is required to produce this part. This tooling is not owned by the Government or, where owned, cannot be made available to other sources. Valid AMCs: 1, 2, 3, 4 and 5.

N This part requires special test and/or inspection facilities to determine and maintain ultra-precision quality for its function or system integrity. Substantiation and inspection of the precision or quality cannot be accomplished without such specialized test/inspection facilities.

Valid AMCs: 1, 2, 3, 4 and 5.

P The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.

Q The government does not have adequate data, lacks rights to data, or both, needed to purchase this part from additional sources. Valid AMCs: 1, 2, 3, 4 and 5.

R The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them.

Valid AMCs: 1, 2, 3, 4 and 5.

S Procurement of this item restricted to limited source(s) because security classifiation of confidential or higher prevents public disclosure. Valid AMCs: 1, 2, 3, 4 and 5.

T Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.

U The cost to the Government to breakout this part and acquire it competitively has been determined to exceed the projected savings over the life span of the part. Valid AMCs: 1, 2, 3, 4 and 5.

V This part has been designated a high-reliability part under a formal reliability program.

Probability of failure would be unacceptable from the standpoint of safety of personnel and/or equipment. The cognizant engineering activity has determined that data to define and control reliability limits cannot be obtained nor is it possible to draft adequate specifications for this purpose. Valid AMCs: 1, 2, 3, 4 and 5.

Y The design of this part is unstable. Engineering, manufacturing, or performance characteristics indicate that the required design objectives have not been achieved. Major changes are contemplated because the part has a low process yield or has demonstrated marginal performance during tests or service use. These changes will render the present part obsolete and unusable in its present configuration. Limited acquisition from the present source is anticipated pending configuration changes. Valid AMCs: 1, 2, 3, 4 and 5.

Z This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.

0:

Critical Safety Item (CSI) derived from Special Procedures Code (SPC)

SPC Service 03 CSI-Navy 05 CSI-Army 06 CSI-AirF (Air Force) 07 Chem-Bio (CBDE)

0:

Special Procedures Code (SPC)

01 - AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT (ALRE)

Navy Carrier and Carrier training

02 - INDIVIDUAL REPAIR PART ORDERING DATA (IRPOD)

Items within the Navy Nuclear community with Specific Tech data needs identified in a bi-monthly IRPIL (Individual Repair Parts Issue List)

03 - NAVY IDENTIFIED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

04 - INTERCONTINENTAL BALLISTIC MISSILE (ICBM) ITEM

Air Force defined items, also called NUCLEAR HARDENED

05 - ARMY DESIGNATED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

06 - AIR FORCE DESIGNATED CRITICAL SAFETY ITEM (CSI)

All of these items will also be Flight Safety Indicator (FSI)

07 - CHEMICAL BIOLOGICAL DEFENSE EQUIPMENT ITEM (CBDE)(CSI)

U.S. Army Edgewood Chemical Biological Center (ECBC)

97 - EDGEWOOD CHEMICAL BIOLOGICAL CENTER

U.S. Army Edgewood Chemical Biological Center (ECBC) note: ALL NSNs which have an SPC of ‘03’,‘05’ or ‘06’ are considered FSI.

FSI items will not necessarily be an SPC of ‘03’, ‘05’ or ‘06’.

0:

Place of Inspection Code (PIC)

1 Inspection at Source / Acceptance at Source 2 Inspection at Destination / Acceptance at Destination C Inspection at Source / Acceptance at Source (used for Critical application items) 3 Inspection at Source/ Acceptance at Destination (used for Hazardous Materials) 4 Inspection at Destination/ Acceptance at Source (used for Hazardous Materials)

0:

Quality Control Code (QCC)

QCC -- First Position (Contract Quality Requirements) A Contract Quality Requirements further defined.

Material Master - Additional Data - Internal Comments B Commercial (Any System Offered) C Contractor Responsibility D Standard Inspection E Higher Level Contract Quality F Higher Level Contract Quality - ISO 9001:2000 G Commercial - First Article Testing Government H Contractor Responsibility - First Article Testing Government J Standard Inspection - First Article Testing Government K Higher Level Contract Quality - First Article Testing Government L Higher Level Contract Quality ISO 9001:2000 First Article Testing Government M Commercial - First Article Testing Contractor N Contractor Responsibility - First Article Testing Contractor P Standard Inspection - First Article Testing Contractor Q Higher Level Contract Quality - First Article Testing Contractor R Higher Level Contract Quality ISO 9001:2000 First Article Testing Contractor QCC -- Second Position (Quality Subsystem Identification) A No Quality Subsystem Requirements B Product Verification Testing (PVT) C Measurement and Test Equipment (M/TE) D Certificate of Conformance (CoC) E Product Verification Testing / Measurement and Test Equipment (PVT / M/TE) F Product Verification Testing / Certificate of Conformance (PVT / COC) G Product Verification Testing / Measurement and Test Equipment / Certificate of Conformance (PVT / M/TE / COC) H Measurement and Test Equipment / Certificate of Conformance (M/TE / COC) QCC -- Third Position (Quality Specific Identification) A No Specific requirements B Calibration System Requirements C Quality Assurance Letter of Instruction (QALI) D Pre-award Survey E Post-award Conference F Shelf Life - Depot Storage Standard Actions G Statistical Process Control (SPC) H CIM/IMQIP Controlled Industrial Material / Industrial Material Quality Improvement Program J Deliverable Data - DD 1423 K Two or more codes apply L Local Clause(s) apply M One or more codes and local clause(s) apply N Dermatology and Toxicity (DSCP Medical use) P Additional Requirements - Material Master Additional Data - Internal Comments

0:

Acquisition Advice Code (AAC)

A Service/Agency-regulated.

B Inventory Control Point (ICP)-regulated C Service/Agency-managed.

D DoD Integrated Materiel-managed, stocked, and issued.

E Other Service-managed, stocked, and issued F Fabricate or Assemble.

G General Services Administration (GSA)/Civil agency.

H Direct Delivery under a central contract.

I Direct Ordering from a central contract/schedule.

J Not stocked, centrally procured.

K Centrally stocked for overseas only.

L Local Purchase.

M Restricted requisitions-major overhaul.

N Restricted requisitioning-disposal.

O Packaged fuels.

P Restricted requisition-Security Assistance Program (SAP).

Q Bulk petroleum products.

R Restricted requisition-Government Furnished Material (GFM) S Restricted requisitioning-Other service funded T Condemned.

U Lead service-managed.

V Terminal item.

W Restricted requisitioning-special instructions> X Semiactive item-no replacement.

Y Terminal item.

Z Insurance/Numeric Stockage Objective item (NSO).

Henry J. Murray Jr.:

How many AMPL references are there for this NIIN?

0:

Reference Number Variation Code (RNVC) Code indicates that a cited reference number is item identifying, is not item identifying, or is a reference number for information only.

1 - A design control reference or other reference number that does not identify an item of production without the use of additional information, or is either a specification, part, type or similar reference number that does not identify an item of supply without the use of additional information.

2 - A design control reference or other reference number that is an item-identifying number for an item of production, or is either a source control reference, a specification or a standard part, type, or similar reference number that is an item-identifying number for an item of supply.

3 - A vendor's reference (part) number on a source control item, as defined in ASMEY- 14.24M and ASMEY-14.100M, which is reparable through the removal, exchange, and reinstallation of component parts. The related source control document number will also reflect the code 3. This code is limited to a type 1B or 4B item identification.

8 - A non-item-identifying reference number that is added to a replacement NSN as a result of a cancel-use action on a NSN recorded with ISC 3 or E. It is used to indentify the original item of supply/replaced item. This reference number is automatically moved and this code is automatically assigned, do not submit for cataloging purposes.

9 - A reference number which was the Design Control Reference for the item of supply concept (Original Design Activity) that is now inactive coded Reference Number Category Code (RNCC) 3; a specification, standard, or other reference number which is superseded, cancelled, obsolete or discontinued and is coded RNCC 5; a reference number for information only coded RNCC 6; a drawing which is the Single Controlling Reference Number (SCRN) coded RNCC 2 or 7; or a drawing number reference coded RNCC D.

0:

Reference Number Category Code (RNCC) Code that designates the relationship of a reference number to the item of supply.

1 - Source Control Reference.

2 - Definitive Government Specification or Standard Designator Reference.

3 - Design Control Reference.

4 - Non-definitive U.S. Government Specification or Standard Reference.

5 - Secondary Reference.

6 - Informative Reference.

7 - Vendor Item Drawing Reference (formerly specification control reference).

8 - US/NATO-Reproduced Item Identification Number.

A - Design Category Packaging and Related Logistics Data Reference Number.

C - Advisory Reference.

D - Drawing Number Reference.

E - Replaced Reference Number.