The Pin,quick Release, cataloged under National Stock Number 5315-01-021-9317, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-021-9317 |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Shank Diameter | 0.3720 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.335 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN |
| Detent Quantity | 2 |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SPINDLE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHANK |
| Actuation Type | PUSH |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SPINDLE |
| Pin Attachment Type | HOOK OR RING |
| Style Designator | RING HANDLE |
| Material Document and Classification | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SHANK |
| Material Document and Classification | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SPINDLE |
| Grip Length | 3.100 INCHES MINIMUM AND 3.120 INCHES MAXIMUM IN |
| Ring Handle Diameter | 1.060 INCHES MINIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE SHANK |
| Surface Treatment | CADMIUM AND CHROMATE SPINDLE |
| Material | STEEL COMP 4130 SHANK |
| Material | STEEL COMP 4130 SPINDLE |
| Shoulder to Head End Distance | 0.940 INCHES MINIMUM IN |
| Head Diameter | 0.450 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| LG6SR31M | 5/9 Secondary reference Southco Inc. |
| LG6SR3100 | 5/9 Secondary reference Southco Inc. |
| LG6SR3100 | 5/9 Secondary reference U.S. Government activity |
| MS17987-631 | 3/2 Design control — primary reference U.S. Government activity |
| BLS6R31SM | 5/9 Secondary reference U.S. Government activity |
| SLS6R31 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| MS17987-631 | 5/9 Secondary reference U.S. Government activity |
| BLS6R31S | 5/9 Secondary reference U.S. Government activity |
| LG6SR31M | 5/9 Secondary reference U.S. Government activity |
NSN 5315-01-021-9317 is a Pin,quick Release, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-021-9317: Shank Diameter: 0.3720 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.335 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN; Detent Quantity: 2. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.