The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-020-6681, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-020-6681 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Drive Type | KNURLED |
| Material Accommodated Thickness | 0.210 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.375 INCHES NOMINAL IN |
| Stud Head Height | 0.688 INCHES NOMINAL IN |
| Shank Neck Length | 0.247 INCHES NOMINAL IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | KNURLED |
| Stud Shank Major Diameter | 0.240 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL COMP 1010 OVERALL |
| Grip Length | 0.365 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2K220 | 5/9 Secondary reference U.S. Government activity |
| 82-13-220-16 | 3/2 Design control — primary reference U.S. Government activity |
| C6949-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-00-020-6681 is a Stud,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-020-6681: Drive Type: KNURLED; Material Accommodated Thickness: 0.210 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.375 INCHES NOMINAL IN. 12 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.