The Pin,quick Release, cataloged under National Stock Number 5315-01-021-0037, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Southco, S. De R.l. De C.v. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-021-0037 |
| Primary Part Number | LH4CR3700 |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Southco, S. De R.l. De C.v |
| Status | ACTIVE |
| Shank Diameter | 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.410 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 |
| Actuation Type | PULL AND PUSH |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM SPINDLE |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM SHANK |
| Pin Attachment Type | HOOK OR RING |
| Style Designator | RING HANDLE |
| 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 | 3.700 INCHES MINIMUM AND 3.720 INCHES MAXIMUM IN |
| Ring Handle Diameter | 1.000 INCHES MINIMUM AND 1.125 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 | 0.935 INCHES MINIMUM IN |
| Head Diameter | 0.360 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 |
|---|---|
| LH4CR3700 | Southco, S. De R.l. De C.v (MEX) |
| LH4C-R-37M | Southco, S. De R.l. De C.v (MEX) |
| Reference | Meaning |
|---|---|
| LH4CR3700 | 5/9 Secondary reference Southco Inc. |
| LH4C-R-37M | 5/9 Secondary reference Southco Inc. |
| LH4C-R-37M | 5/9 Secondary reference U.S. Government activity |
| LH4CR3700 | 5/9 Secondary reference U.S. Government activity |
| BLC4R37N | 5/2 Secondary reference U.S. Government activity |
| MS17990C437 | 3/2 Design control — primary reference U.S. Government activity |
| MS17990C437 | 5/9 Secondary reference U.S. Government activity |
NSN 5315-01-021-0037 is a Pin,quick Release, manufactured by Southco, S. De R.l. De C.v, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-021-0037 has 2 manufacturer part numbers on file: LH4CR3700 (Southco, S. De R.l. De C.v), LH4C-R-37M (Southco, S. De R.l. De C.v).
Key specifications for LH4CR3700: Shank Diameter: 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.410 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.