The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-01-021-3816, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-021-3816 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Center to Center Distance Between Mounting Holes | 1.000 INCHES NOMINAL IN |
| Mounting Style | PLAIN W/MOUNTING HOLE |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | PROTECTIVE CAP |
| Receptacle Width | 0.625 INCHES NOMINAL IN |
| Turnlock Mounting Hole Diameter | 0.128 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Receptacle Height | 1.249 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A5A3B2-.063 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-021-3816 is a Receptacle,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-021-3816: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Center to Center Distance Between Mounting Holes: 1.000 INCHES NOMINAL IN; Mounting Style: PLAIN W/MOUNTING HOLE; Material Document and Classification: QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 10 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.