The Pin,quick Release, cataloged under National Stock Number 5315-00-916-6574, 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 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-916-6574 |
| Primary Part Number | LH12S-L-33M |
| 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 | 0.7470 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.740 INCHES MINIMUM AND 0.790 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 OR RING |
| Style Designator | L 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 | 3.300 INCHES MINIMUM AND 3.320 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE SHANK |
| Surface Treatment | CADMIUM AND CHROMATE SPINDLE |
| Pin Center to Handle End Distance | 1.685 INCHES MINIMUM AND 1.810 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 SHANK |
| Material | STEEL COMP 4130 SPINDLE |
| Shoulder to Head End Distance | 1.465 INCHES MAXIMUM IN |
| Head Diameter | 0.890 INCHES MINIMUM AND 0.960 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 |
|---|---|
| LH12S-L-33M | Southco, S. De R.l. De C.v (MEX) |
| MS17989-1233 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| DLS12L33N | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BLS12L33N | Satair A/s (DNK) |
| LH12SL1233 | Southco, S. De R.l. De C.v (MEX) |
| Reference | Meaning |
|---|---|
| MS17989-1233 | 5/9 Secondary reference U.S. Government activity |
| LH12SL1233 | 5/9 Secondary reference Southco Inc. |
| MS17989-1233 | 3/2 Design control — primary reference U.S. Government activity |
| LH12S-L-33M | 5/9 Secondary reference U.S. Government activity |
| NAS1332TYIIST3 | 5/1 Secondary reference U.S. Government activity |
| LH12S-L-33M | 5/9 Secondary reference Southco Inc. |
| BLS12L33NM | 5/9 Secondary reference Southco Inc. |
| BLS12L33N | 5/2 Secondary reference U.S. Government activity |
| LH12SL1233 | 5/9 Secondary reference U.S. Government activity |
| BLS12L33NM | 5/9 Secondary reference U.S. Government activity |
NSN 5315-00-916-6574 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 5315-00-916-6574 has 5 manufacturer part numbers on file: LH12S-L-33M (Southco, S. De R.l. De C.v), MS17989-1233 (Fairchild Fasteners Europe - Vsd Gmbh), DLS12L33N (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), BLS12L33N (Satair A/s), LH12SL1233 (Southco, S. De R.l. De C.v).
Key specifications for LH12S-L-33M: Shank Diameter: 0.7470 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.740 INCHES MINIMUM AND 0.790 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.