The Pin,quick Release, cataloged under National Stock Number 5315-01-128-0356, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services SAS. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-128-0356 |
| Primary Part Number | BLS4R25N |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Boeing Distribution Services SAS |
| Status | ACTIVE |
| Shank Diameter | 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.360 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Detent Quantity | 2 |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE HANDLE |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHANK |
| Surface Treatment Document and Classification | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SPINDLE |
| Actuation Type | PULL AND PUSH |
| Hardness Rating | 36.0 ROCKWELL C NOMINAL AND 40.0 ROCKWELL C MINIMUM SHANK |
| Hardness Rating | 36.0 ROCKWELL C NOMINAL AND 40.0 ROCKWELL C MINIMUM SPINDLE |
| Pin Attachment Type | HOOK |
| Style Designator | RING HANDLE |
| Material Document and Classification | MIL-T-6736 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE SHANK |
| Material Document and Classification | MIL-T-6736 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE SPINDLE |
| Material Document and Classification | QQ-S-423 FED SPEC SINGLE MATERIAL RESPONSE RING |
| Material Document and Classification | QQ-S-637 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-591 FED SPEC 2ND MATERIAL RESPONSE HANDLE |
| Grip Length | 2.500 INCHES MINIMUM AND 2.700 INCHES MAXIMUM IN |
| Ring Handle Diameter | 1.125 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM SPINDLE |
| Surface Treatment | CADMIUM SHANK |
| Surface Treatment | CADMIUM HANDLE |
| Material | STEEL COMP 302 RING |
| Material | STEEL COMP 4130 SHANK |
| Material | STEEL COMP 4130 SPINDLE |
| Material | STEEL OR ALUMINUM ALLOY HANDLE |
| Shoulder to Head End Distance | 0.935 INCHES MINIMUM IN |
| Head Diameter | 0.350 INCHES MINIMUM AND 0.450 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 |
|---|---|
| BLS4R25N | Boeing Distribution Services SAS (FRA) |
| 13275S04R25 | Boeing Distribution Services SAS (FRA) |
| BLS4R25N | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| BLS4R25N | 3/2 Design control — primary reference U.S. Government activity |
| 13275S04R25 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| BLS4R25N | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
NSN 5315-01-128-0356 is a Pin,quick Release, manufactured by Boeing Distribution Services SAS, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-128-0356 has 3 manufacturer part numbers on file: BLS4R25N (Boeing Distribution Services SAS), 13275S04R25 (Boeing Distribution Services SAS), BLS4R25N (Satair A/s).
Key specifications for BLS4R25N: Shank Diameter: 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.360 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN; Detent Quantity: 2. 27 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.