The Pin,quick Release, cataloged under National Stock Number 5315-00-417-8559, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-417-8559 |
| Primary Part Number | DLS4R17N |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | ACTIVE |
| Shank Diameter | 0.2470 INCHES MINIMUM AND 0.2485 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-35 FED SPEC SINGLE TREATMENT RESPONSE RING |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE DETENT |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE BUTTON |
| 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 | HOOK |
| Style Designator | RING HANDLE |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE SPINDLE |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE SHANK |
| Material Document and Classification | QQ-763 FED SPEC SINGLE MATERIAL RESPONSE DETENT |
| Material Document and Classification | QQ-A-225/5 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC 2ND MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 4TH MATERIAL RESPONSE BUTTON |
| Material Document and Classification | QQ-W-423,FORM 1,COND B FED SPEC SINGLE MATERIAL RESPONSE RING |
| Grip Length | 1.700 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN |
| Ring Handle Diameter | 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE RING |
| Surface Treatment | PASSIVATE DETENT |
| Surface Treatment | ANODIZE OR OXIDE FILM BUTTON |
| Shear Strength | 8200 DOUBLE POUNDS PER SQUARE INCH |
| Material | STEEL SPRING |
| Material | STEEL HEAD |
| Material | STEEL COMP 302 RING |
| Material | STEEL COMP 4130 SHANK |
| Material | STEEL COMP 4130 SPINDLE |
| 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 |
|---|---|
| DLS4R17N | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BLS4R17N | Boeing Distribution Services SAS (FRA) |
| MS17990-417 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| BLS4R17N | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| BLS4R17N | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| BLS4R17N | 5/2 Secondary reference U.S. Government activity |
| MS17990-417 | 3/2 Design control — primary reference U.S. Government activity |
| LH4S-R-17M | 5/2 Secondary reference U.S. Government activity |
| MS17990-417 | 5/9 Secondary reference U.S. Government activity |
| LH4SR1700 | 5/2 Secondary reference U.S. Government activity |
NSN 5315-00-417-8559 is a Pin,quick Release, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-417-8559 has 4 manufacturer part numbers on file: DLS4R17N (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), BLS4R17N (Boeing Distribution Services SAS), MS17990-417 (Fairchild Fasteners Europe - Vsd Gmbh), BLS4R17N (Satair A/s).
Key specifications for DLS4R17N: Shank Diameter: 0.2470 INCHES MINIMUM AND 0.2485 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. 29 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.