B08 Attachment 0003 12592252_QAP_H.pdf
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- Suspense Arm Forging
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- W519TC26QA062
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This is a Quality Assurance Provisions (QAP) document for the Suspension Arm, Gun Carriage, LH component used in the Howitzer, Light, Towed, 105mm, M119A1/A2/A3 weapon system. The document is issued by the U.S. Army Armament Research, Development, and Engineering Center at Picatinny Arsenal, New Jersey, under drawing number 12592252, CAGE code 19200, with the most recent revision dated January 28, 2013.
The QAP establishes comprehensive quality assurance requirements applicable to forged and welded suspension arms. Key conformance characteristics are classified into 139 major characteristics and 5 minor characteristics covering dimensional tolerances, thread specifications, geometric tolerances, hardness testing, surface roughness, and protective finishes. Critical inspection requirements include external and internal threads, bore diameters, hardness verification (per MIL-S-46172 Steel Forgings specification), magnetic particle inspection, and surface cleanliness per TT-C-490. Contractors must submit a three-piece first article sample for approval and provide Certificates of Conformance and Certified Test Reports documenting material, forging, heat treatment, welding, magnetic particle inspection, mechanical properties (minimum yield strength of 123 ksi, 12% elongation, and Charpy V-notch impact of 20J at -40°C), and coating characteristics including salt spray resistance, adhesion, phosphate coating weight, and hydrogen embrittlement relief testing. Inspection shall follow MIL-STD-1916 attributes sampling procedures at verification level II for major characteristics and level I for minor characteristics, with normal inspection for current/previous suppliers and tightened inspection for new suppliers.
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Other files
| File | Type | Posted |
|---|---|---|
| W519TC26QA062 P0004 SF30.pdf | ||
| 26QA062 P0003 SF30.pdf | ||
| W519TC26QA062 0002 conformed.pdf | ||
| W519TC26QA062 0002 SF 30.pdf | ||
| W519TC26QA062 P0001 SF 30.pdf | ||
| W519TC26QA062.pdf |
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QUALITY ASSURANCE PROVISIONS (QAP)
(DARCOM-R-702-10)
1. COMMAND AGENCY:
U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER
PICATINNY ARSENAL, NJ 07806-5000
2. THESE QAP’S FORM PART OF DRAWING/SPECIFICATION 12592252 AS SPECIFIED IN THE CONTRACT.
INSPECTION SHALL BE CONDUCTED AS SPECIFIED HEREIN AND IN ACCORDANCE WITH REFERENCED DOCUMENTS.
3.
PART I. LIST OF APPLICABLE DOCUMENTS
DRAWINGS
12592252 Suspension Arm, Gun Carriage, LH
STANDARDS
MIL-STD-1916 DoD Preferred Methods for Acceptance of Product
SPECIFICATIONS
MIL-S-46172 Steel Forgings TT-C-490 Cleaning Methods for Ferrous Surfaces and Pretreatments for Organic Coatings
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
4. RELEASE
NUMBER L9A2033 L2A2026 L06A2022 L07A2007 L07A2025 L09A2026 L10A2055
5. DATE 991222 030530 060417 070320 070530 100111 101119
4.RELEASE
NUMBER L12A2043
5. DATE 130128
REVISION
STATUS
OF
SHEETS
6. REVISION H H H H H H H H
7. SHEET 1 2 3 4 5 6 7 8
8. REVISION
7. SHEET
8. QAP FOR:
Suspension Arm, Gun Carriage, LH: Howitzer, Light, Towed, 105mm, M119A1/A2/A3
CAGE CODE
19200
9. SUBMITTED BY:
RDAR-QEW-B
10. QAP NO.:
12592252
11. DATE:
901022
12. APPROVED: 13. RELEASE NO. :
G8A2123
14. PAGE NO.:
15. NO. OF PAGES:
BROWN.DWAYNE.OWEN
.1290055462
Digitally signed by BROWN.DWAYNE.OWEN.1290055462 DN: c=US, o=U.S. Government, ou=DoD, ou=PKI, ou=USA, cn=BROWN.DWAYNE.OWEN.1290055462 Date: 2013.05.08 14:52:24 -04'00'
BERRY.MATTHEW.JOHN.139464
Digitally signed by BERRY.MATTHEW.JOHN.1394645270 DN: c=US, o=U.S. Government, ou=DoD, ou=PKI, ou=USA, cn=BERRY.MATTHEW.JOHN.1394645270 Date: 2013.05.14 13:58:10 -04'00'
QUALITY ASSURANCE PROVISION (QAP)
3.
PART II. CONFORMANCE PROVISIONS
1. General provisions.
1.1 Classification of characteristics. There are three classes of characteristics covered in this QAP. These are:
Critical Characteristics, Major Characteristics, and Minor Characteristics, as defined in MIL-STD-1916.
1.2 Workmanship. All parts shall be fabricated and finished in a thorough, workmanlike manner and all manufacturing, processing and assembly shall be correctly performed. The parts shall be clean and free of burrs, sharp edges, unblended radii, surface defects, cracks, chips, dirt, grease, oil (except where specifically required), rust, foreign matter or any evidence of poor workmanship that could render the system unsuitable for its intended purpose.
1.3 Certification provisions.
1.3.1 Certificate of conformance (COC). A certificate of conformance is required for Military Standard and commercial items, supported by inspection and test data, material analysis, or certification from the raw material producer or processor, and shall be made available to the Government for specifications covering raw material, processed material, and processes. The contractor shall make the COC available to the Government prior to or with the request to perform acceptance inspection approval by the Government. This is in addition to, and not in lieu of, any rights of the Government under this contract or law. A COC may be used as an element incident to, but shall not be used as the sole basis for, Government acceptance of contract item(s) unless so indicated in the technical documentation or contract. As a minimum, the COC shall contain the following:
a. Name of company and date.
b. Contract number or purchase order number, national stock number and drawing number.
c. Complete nomenclature of supplies together with lot number or other identification. The quantity in each lot or shipment shall be given.
d. A statement, as follows, certifying that material meets all requirements of the contract:
“The undersigned, individually, and as the authorized representative of the contractor, warrants and represents that: All the information supplied above is true and accurate; the material covered by this certificate conforms to all contract requirements (including but not limited to the drawings and specifications); the analyses appearing herein are true and accurate analyses; and this certificate is made for the purpose of inducing payment and with knowledge that the information and certification may be used as a basis for such payment.”
e. Signature and title of certifying official.
1.3.2 Certified test reports (CTR). When specified in the contract or in documents referenced herein, the contractor shall make available to the Government a CTR for each lot of parts, assemblies, subsystems and systems by lot number prior to acceptance. This test report is in addition to, and not in lieu of, any rights of the Government under this contract or law. A CTR may be used as an element incident to, but shall not be used as the sole basis for, Government acceptance of contract item(s) unless so indicated in the technical documentation or contract. As a minimum, the report shall contain the following:
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
11. PAGE NO.
3.
PART II. CONFORMANCE PROVISIONS (CONT’D)
a. Name of company and date.
b. Contract number or purchase order number, national stock number and drawing number.
c. Complete nomenclature of supplies together with lot number or other identification. The quantity in each lot or shipment shall be given
d. All inspections and tests required by contract (i.e., material, processes, performance, functional, etc.) shall be recorded in test reports. These reports shall identify each lot submitted for acceptance by lot number, the specification or drawing, revision and date, grade or type as applicable, number of specimens tested, specified characteristics and requirements, and actual results obtained.
e. Reports of the raw material producer’s chemical, mechanical, and physical analysis.
f. A statement, as follows, certifying that material meets all requirements of the contract:
“The undersigned, individually, and as the authorized representative of the contractor, warrants and represents that: All the information supplied above is true and accurate; the material covered by this certificate conforms to all contract requirements (including but not limited to the drawings and specifications); the analyses appearing herein are true and accurate analyses; and this certificate is made for the purpose of inducing payment and with knowledge that the information and certification may be used as a basis for such payment.”
g. Signature and title of certifying official.
2. First article inspection.
2.1 Submission. Unless otherwise specified, a first article sample consisting of three (3) suspension arms shall be submitted for inspection and approval in accordance with the terms of this contract. The sample items will be subjected to any or all of the conformance inspections listed in Part III of this QAP and may be inspected for compliance with any or all of the requirements of the applicable drawing(s) and specification(s). The certification requirements of Part IV apply.
2.2 Rejection. If any sample item fails to comply with any of the applicable requirements, the First Article sample shall be rejected. The Government reserves the right to terminate inspection upon any failure to comply with any of the requirements.
3. Verification. Verification inspection shall consist of inspection of all conformance characteristics contained in Part III, Inspection Requirements, and Part IV, Certification Provisions, of this QAP. Failure to comply with the conformance criteria specified shall be cause for rejection of the lot or quantity represented.
3.1 Lot formation. Inspection lots shall comply with the lotting requirements of MIL-STD-1916, paragraph 4.2.
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
3.
PART II. CONFORMANCE PROVISIONS (CONT’D)
3.2 Attributes sampling inspection. The provisions/procedures of MIL- STD-1916 are applicable to this QAP. Unless otherwise specified, attributes sampling for the conformance characteristics listed in Part III herein shall be in accordance with MIL-STD-1916, Table II, using the verification level cited in the conformance criteria columns of Part III. The procedure in MIL-STD-1916 for normal inspection shall be used at the start of production for current or previous suppliers of the item. For all new suppliers of the item, tightened inspection shall be used at the start of production and be continued until the criteria for normal inspection are met.
3.3 Alternative verification provisions. Unless otherwise specified, alternative verification provisions, such as statistical process control (preferred), variables or continuous sampling plans, may be used by the contractor in lieu of the inspection provisions contained herein when such alternative(s) provide an equivalent or better level of quality, and provided they have been described in a written proposal which has been approved by the Government.
3.4 Inspection equipment. Unless otherwise specified herein or the contract, all inspection equipment required to perform the examinations and tests in this QAP shall be designed, documented and maintained by the contractor, including any fixtures necessary to accommodate the test procedures. Inspection equipment shall incorporate the appropriate measurement capability, precision and accuracy to assure rejection of all nonconforming product.
PART III. INSPECTION REQUIREMENTS
1. Classification of Conformance Characteristics.
CLASS CHARACTERISTIC SHEET ZONE CONFORMANCE INSPECTION
CRITERIA METHOD
CRITICAL: None
MAJOR:
101 External threads, 4.250-16 UN-2A Major diameter 1 C2 II SMTE Pitch diameter 1 C2 II SMTE
102 True position of external threads to datum -S- 1 C2 II SMTE 103 Perpendicularity of datum -V- to datum -T- 1 F5 II SMTE 104 Hardness 1 A4 II SMTE 105 Diameter, datum -P- 2 F5 II SMTE 106 True position of datum -P- to datums
-V- and -T- 2 F5 II SMTE 107 Diameter, 1.967 2 F5 II SMTE 108 True position of 1.967 dia. to datum -T- 2 F5 II SMTE 109 Diameter, datum -T- 2 F5 II SMTE 110 External threads, datum -W-
Major diameter 2 E5 II SMTE Pitch diameter 2 E5 II SMTE
111 Dimension, .1175 2 E1 II SMTE 112 Parallelism of datum -L- to datum -D- 2 F1 II SMTE 113 Perpendicularity of datum -D- to datum -S- 2 B2 II SMTE
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
3.
PART III. INSPECTION REQUIREMENTS (CONT’D)
CLASS CHARACTERISTIC SHEET ZONE CONFORMANCE INSPECTION
CRITERIA METHOD
MAJOR: (CONT’D)
114 Dimension, .2365 2 F1 II SMTE 115 True position of 5.695 dia. to datums
-L- and -S- 2 D1 II SMTE 116 Diameter, datum -S- 2 D1 II SMTE 117 Diameter, datum -M- 2 C4 II SMTE 118 Perpendicularity of datum -M- to datum -J- 2 C4 II SMTE 119 True position of datum -M- to datum -G- 2 C4 II SMTE 120 Diameter, datum -G- 2 C4 II SMTE 121 True position of datum -G- to datum -S- 2 C4 II SMTE 122 Perpendicularity of datum -G- to datum -J- 2 C4 II SMTE 123 Diameter, 6 X .4105 2 E7 II SMTE 124 True position of 6 X .4105 dia. to datum -V- 2 D7 II SMTE 125 Internal threads, 6 X 0.25-28 UNF-2B
Minor diameter 2 B7 II SMTE Pitch diameter 2 B7 II SMTE
126 Surface roughness, AA16 2 C1 II SMTE 127 Surface roughness, AA32 (2 places) 2 B1, E1 II SMTE 128 Diameter, datum -K- 3 C6 II SMTE 129 Dimension, .4575 3 F8 II SMTE 130 Internal threads, 2 X .4375 -14 UNC-2B
Minor diameter 3 A6 II SMTE Pitch diameter 3 A6 II SMTE
131 True position of internal threads to datum -F- 3 A6 II SMTE 132 Internal threads, 0.375-24UNF-2B
Minor diameter 4 E5 II SMTE Pitch diameter 4 E5 II SMTE
133 Dimension, 12 X 2.83755 (2 places) 4 C3, D3 II SMTE 134 True position of 12 X 2.83755 dim. to datums
-G- and -J- (2 places) 4 C3, D3 II SMTE 135 Diameter, 4.0618 4 C2 II SMTE 136 Radius, 48 X .0275 4 E4 II SMTE 137 True position of 0.317 dimension to datum -S- 4 C4 II SMTE 138 Threads free of primer and paint 1 Note 19 II Visual 139 Magnetic particle inspection 1 Note 6 100% SMTE
MINOR:
201 Dimension, 3.625 1 F5 I SMTE 202 Dimension, 1.895 1 E3 I SMTE 203 Dimension, 3.250 1 D3 I SMTE 204 Radius, .025 1 B5 I SMTE 205 Surface roughness, AA63 (4 places) 2 E5, F3 I SMTE
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
3.
PART III. INSPECTION REQUIREMENTS (CONT’D)
CLASS CHARACTERISTIC SHEET ZONE CONFORMANCE INSPECTION
CRITERIA METHOD
MINOR: (CONT’D)
206 Parallelism of 1.967 dia. to datum -S- 2 F5 I SMTE 207 Parallelism of datum -T- to datum -S- 2 F5 I SMTE 208 True position of datum -W- to datum -T- 2 E5 I SMTE 209 True position of internal threads to datums
-J- and -M- 2 B8 I SMTE 210 Counterbore diameter, 1.881 2 F3 I SMTE 211 Diameter, 1.254 2 E5 I SMTE 212 True position of 0.258 diameter to datum -W- 2 F6 I SMTE 213 Dimension, .055 2 B2 I SMTE 214 Diameter, 6.060 2 B1 I SMTE 215 True position of 6.060 dia. to datums
-L- and -S- 2 B1 I SMTE 216 Keyway dimension, 4.143 2 D1 I SMTE 217 Diameter, 4.300 2 E1 I SMTE 218 Diameter, 5.695 2 D1 I SMTE 219 Perpendicularity of datum -J- to datum -S- 2 A3 I SMTE 220 Diameter, .1895 3 D6 I SMTE 221 True position of .1895 dia. to datums
-L- and -S- 3 D6 I SMTE 222 Diameter, .3775 3 D3 I SMTE 223 Dimension, datum -H- 3 D1 I SMTE 224 True position of datum -K- to datum -H- 3 C5 I SMTE 225 Dimension, .317 4 C4 I SMTE 226 Radius, .125 4 E5 I SMTE 227 Sharp corner 1 Note 9 I SMTE 228 Protective finish missing or defective 1 Note 19 I Visual 229 Oil film preservative missing from unpainted surfaces 1 Note 19 I Visual 230 Item identification missing, incorrect or illegible 1 Note 18 I Visual 231 UID missing 1 Note 29 I Visual 232 Workmanship All All I 506
2. Special Sampling.
2.1 Special sampling inspection. As applicable, the following inspections will be performed at the rate of one sample (minimum) per lot. These inspections will be performed on Forged Suspension Arms that have not been normalized or annealed. As the allowed alternate method of manufacture, Welded Suspension Arms, per Note 26 of drawing 12592252, which have full weld penetration and are post weld heat-treated prior to machining, must also be submitted to test for the mechanical properties specified. Test coupons for mechanical properties testing are to be removed from the suspension arm in the location as provided on Sheet 4, Zone D7 and Note 3.
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
3.
PART III. INSPECTION REQUIREMENTS (CONT’D)
301 Yield strength (0.2% Proof Stress): 123 ksi, minimum 302 Elongation: 12 %, minimum 303 Charpy V-notch: 20J, minimum, at - 40 degrees C, minimum
2.2 Special sampling inspection. The contractor shall randomly select samples at a rate of three per production lot, or at a rate as directed in the applicable test method paragraph. Standard test panels may be used instead of parts, and that have been coated in the same manner at the same time. The samples shall be subjected to the following tests:
NUMBER CHARACTERISTIC INSPECTION / TEST METHOD
304 Surface cleanliness 501 305 Salt spray resistance 502 306 Adhesion 503 307 Phosphate coating weight 504 308 Hydrogen embrittlement relief test 505
2.3 Failure. If any sample fails to meet the specified test requirements, the quantity of product that the sample represents shall be rejected.
PART IV. CERTIFICATION PROVISIONS
1. The certification provisions of paragraph 1.3 shall apply. Certifications are required for the following:
NUMBER CHARACTERISTIC CERTIFICATION METHOD TEST DATA TO COMPLY WITH
401 Material Certificate of Conformance Dwg. 12592252, Note 2 402 Forging (as applicable) Certificate of Conformance Dwg. 12592252, Note 3 403 Annealing or normalizing
(as applicable) Certificate of Conformance Dwg. 12592252, Note 3 404 Electron beam welding
(as applicable) Certificate of Conformance Dwg. 12592252, Note 26 405 Post weld heat treatment
(as applicable) Certificate of Conformance Dwg. 12592252, Note 26 406 Magnetic particle inspection Certificate of Conformance Dwg. 12592252, Note 6 407 Cleaner, pretreatment, primer and paint Certified Test Report Dwg. 12592252, Note 19 408 Cleaning, pretreating, priming and painting Certificate of Conformance Dwg. 12592252, Note 19 409 Oil film preservative Certificate of Conformance Dwg. 12592252, Note 19 410 Mechanical Properties Certified Test Report Dwg. 12592252, Notes 2 and 3
PART V. TEST METHODS AND PROCEDURES
501 Surface cleanliness. Prior to painting, all surfaces shall be visually examined to assure a proper cleaning and pretreatment, including successful completion of a water break test, as required by TT-C-490, paragraph 4.2.3.
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
3.
PART V. TEST METHODS AND PROCEDURES (CONT’D)
502 Salt spray resistance test. The test shall be performed in accordance with the requirements of TT-C-490, paragraph 4.2.8.
503 Adhesion test. The test shall be performed in accordance with the requirements of TT-C-490, paragraph 4.2.7.2.
504 Phosphate coating weight. Test samples shall be prepared by choosing three samples for every four hours of phosphate processing. The test shall be performed in accordance with the requirements of TT-C-490, paragraph 4.2.6.1.
505 Hydrogen embrittlement relief test. One sample shall be chosen for testing at a frequency of every 90 to 120 days. The test shall be performed in accordance with the requirements of TT-C-490, paragraph 4.2.9.
506 Workmanship. All Suspension Arms shall be clean and free of burrs, sharp edges, and unblended radii. There will be no visible evidence of laps, seams or propagating defects, including cracks, shrinkage, bursts, flakes and laminations. All edges and corners shall be broken. Painted areas shall be clean and free of dirt, grease and oil, or foreign material. The primer and final coat shall not run, sag or streak, and shall dry to a hard smooth finish, and shall be free from grit, cracking, peeling, blisters, or other surface irregularities. The coating shall be smooth and even with no evidence of streaking or breaks in the coating surface.
CAGE CODE
19200 16.
REVISION
SYMBOL
AND DATE
H130128 10. QAP NO.
12592252
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