B08 Attachment 0005 - SPC Tables - Mortar Fins.pdf

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Solicitation Notice for 60mm M27, 81mm M24, 81mm M28 Mortar Fins
Solicitation number
W52P1J-22-R-0045
Issued by

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This document provides Statistical Process Control (SPC) requirements for 60mm M27, 81mm M24, and 81mm M28 mortar fins to support a forthcoming solicitation. Key characteristics requiring SPC control charting are identified for the mortar fins and associated components. The related federal contract opportunity is a solicitation notice for the mortar fins. Awards will be made under two firm-fixed price IDIQ contracts with five one-year ordering periods. Estimated annual order quantities of 300,000 units for 60mm M27 fins, 350,000 units for 81mm M24 fins, and 30,000 units for 81mm M28 fins are provided. Offerors must have the capability to produce all referenced mortar fin configurations to be considered for award. The solicitation will be available on SAM.gov beginning August 17, 2022, with a closing date of September 19, 2022. The Army Contracting Command-Rock Island will issue the solicitation on behalf of the Joint Munitions Command.

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Statistical Process Control (SPC) Requirements

The contractor shall consider the below SPC requirements as well as any additional SPC when establishing their bid for this solicitation. Historical data and past production can be submitted and may considered for exceptions to the characteristics captured below.

At a minimum, the following characteristics shall be subjected to the application of SPC techniques as identified:

M27 drawing #11751196 rev T Characteristics for SPC Control Charting – MIL-DTL-48450C

Paragraph 4.4.2.4

Examination or Test Type of

Charting

C1 Forward thread, minor dia. oversize X Bar R 101 Runout of forward OD X Bar R 102 Runout of PD of ignition cartridge. thread X Bar R 103 Runout of OD of fin X Bar R 110 Minor diameter of ignition cartridge thread X Bar R 111 Diameter of ignition cartridge cavity X Bar R 112 Diameter of hub forward of blades X Bar R 113 Diameter of counterbore at rear of fin blades X Bar R 114 Diameter of fin blades, (large) X Bar R 115 Diameter of fin blades, (small) X Bar R 116 Depth of ignition cartridge cavity X Bar R 123 Length, total X Bar R 125 Height of fin blade cant (all blades) X Bar R

Revised 26 October 2021 be submitted and may considered for exceptions to the characteristics captured below.

At a minimum the following characteristics shall be subjected to the application of SPC

M24 HOUSING drawing # 11726795 rev R

Characteristics for SPC Control Charting – MIL-DTL-48425B

Paragraph/ Characteristic

4.4.2.4/101 Diameter of housing rear of taper X Bar R 4.4.2.4/102 Diameter of knurl X Bar R 4.4.2.4/103 Diameter rear of knurl X Bar R 4.4.2.4/105 Depth to bottom of cartridge cavity X Bar R 4.4.2.4/110 Length from rear face to fin seat X Bar R

4.4.2.4/115 Runout of PD of rear thread with pitch diameter of forward thread and front and rear faces

X Bar R

4.4.2.4/130 Diameter of cartridge cavity X Bar R

Note 1* Anodizing process parameters and film thickness X Bar

FIN drawing # 11726683 rev L

4.4.2.5/102 Diameter of fin blades (front end) X Bar R 4.4.2.5/104 Diameter of hub (inside) X Bar R 4.4.2.5/106 Length from front face to rear face of hub X Bar R 4.4.2.5/110* Overall length X Bar R

Note 1: The contractor to provide a description of the process control procedures including the monitoring and charting of applicable parameters. Anodize film thickness shall be charted using an X Bar R chart along with any applicable parameters.

Note 2: Dimensional verifications shall be post anodize for fin and housing.

M24 FIN ASSEMBLY drawing # 11726889 rev W

4.4.2.6/110 Height of fin blade cant (all blades) X Bar R

Revised 26 October 2021 be submitted and may considered for exceptions to the characteristics captured below.

At a minimum the following characteristics shall be subjected to the application of SPC

M28 HOUSING drawing # 9327833 rev Y

Characteristics for SPC Control Charting – MIL-DTL-70546A

4.4.2.2/101 Large outside diameter (OD) of housing X Bar R 4.4.2.2/102 Diameter of knurl X Bar R 4.4.2.2/103 Rear OD X Bar R 4.4.2.2/105 Depth of ignition cartridge cavity X Bar R 4.4.2.2/107 Distance from rear face to rear shoulder X Bar R 4.4.2.2/111 Runout of large OD with forward thread and forward shoulder X Bar R 4.4.2.2./112 Runout of rear OD with forward thread and forward shoulder X Bar R 4.4.2.2/121 Diameter of cartridge cavity X Bar R

FIN drawing # 9327834 rev T

4.4.2.3/102 Large OD of fin blades X Bar R 4.4.2.3/105 Diameter of hub X Bar R 4.4.2.3/106 Distance from front face to start of rear OD X Bar R 4.4.2.3/107 Distance from front face to basic diameter X Bar R 4.4.2.3/108 Depth of counterbore at rear X Bar R

Note 1: The contractor to provide a description of the process control procedures including the monitoring and charting of applicable parameters. Anodize film thickness shall be charted using an X Bar R chart along with any applicable parameters.

Note 2: Dimensional verifications shall be post anodize for fin and housing.

M28 FIN ASSEMBLY drawing # 9327831 rev H

4.4.2.4/105 Height of fin blade cant (all blades) X Bar R

Revised 14 October 2021

M27 SPC Table revised 10-26-2021
Statistical Process Control (SPC) Requirements
Revised 26 October 2021
M24 SPC Table revised 10-26-2021
Revised 26 October 2021
M28 SPC Table revised 10-26-2021
Revised 14 October 2021

File details come from the government source that posted it. Updated .