The Pin,quick Release, cataloged under National Stock Number 5315-00-177-3722, 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 20 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-177-3722 |
| Primary Part Number | SLC4AB23 |
| 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 | 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Detent Quantity | 2 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHANK |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPINDLE |
| Button Handle Diameter | 0.720 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN |
| Actuation Type | PUSH |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM SPINDLE |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM SHANK |
| Pin Attachment Type | HOOK |
| Style Designator | BUTTON |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5657 ASSN STD 2ND MATERIAL RESPONSE SPINDLE |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5657 ASSN STD 2ND MATERIAL RESPONSE SHANK |
| Grip Length | 2.300 INCHES MINIMUM AND 2.320 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE SPINDLE |
| Surface Treatment | PASSIVATE SHANK |
| Material | STEEL COMP 630 OR STEEL COMP 632 SHANK |
| Material | STEEL COMP 630 OR STEEL COMP 632 SPINDLE |
| Shoulder to Head End Distance | 0.890 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 |
|---|---|
| SLC4AB23 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| LG4CB23M | 5/9 Secondary reference Southco Inc. |
| NAS1334C3C23 | 5/9 Secondary reference U.S. Government activity |
| BLC4B23S | 5/2 Secondary reference U.S. Government activity |
| LG4CB2300 | 5/9 Secondary reference U.S. Government activity |
| MS17984C423 | 3/2 Design control — primary reference U.S. Government activity |
| BLC4B23SM | 5/2 Secondary reference U.S. Government activity |
| MS17984-423 | 5/9 Secondary reference U.S. Government activity |
| LG4CB2300 | 5/9 Secondary reference Southco Inc. |
| LG4CB23M | 5/9 Secondary reference U.S. Government activity |
| MS17984C423 | 5/9 Secondary reference U.S. Government activity |
NSN 5315-00-177-3722 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 5315-00-177-3722 has 1 manufacturer part number on file: SLC4AB23 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
1 possible match (shared part number, not a government interchangeability claim): 5315-00-482-9702. Verify interchangeability with system specifications before substitution.
Key specifications for SLC4AB23: Shank Diameter: 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN; Detent Quantity: 2. 20 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.