The Pin,quick Release, cataloged under National Stock Number 5315-00-658-5333, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Mbda Uk Ltd. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-658-5333 |
| Primary Part Number | A31525 |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Mbda Uk Ltd |
| Status | ACTIVE |
| Shank Diameter | 0.4345 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.510 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 | PULL AND 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 | LINK |
| 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 | 1.800 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN |
| Ring Handle Diameter | 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM 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 | 1.000 INCHES MINIMUM IN |
| Head Diameter | 0.510 INCHES MINIMUM AND 0.630 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 |
| Part Number | Manufacturer |
|---|---|
| A31525 | Mbda Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| BLS7R18N | 5/1 Secondary reference U.S. Government activity |
| B718RN | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-00-658-5333 is a Pin,quick Release, manufactured by Mbda Uk Ltd, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-658-5333 has 1 manufacturer part number on file: A31525 (Mbda Uk Ltd).
Key specifications for A31525: Shank Diameter: 0.4345 INCHES MINIMUM AND 0.436 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.510 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.