The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-020-9739, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-020-9739 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SOCKET |
| Material Accommodated Thickness | 0.384 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.361 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| Diameter | 0.325 INCHES NOMINAL IN |
| Stud Head Height | 0.045 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Stud Shank Major Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minor Diameter | 0.219 INCHES NOMINAL IN |
| Material | STEEL COMP 8740 OVERALL |
| Stud Thread Size and Series/type Designator | 0.164-32 UNJC |
| Grip Length | 0.427 INCHES MINIMUM AND 0.447 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 |
| Reference | Meaning |
|---|---|
| C3199-4-7 | 5/2 Secondary reference U.S. Government activity |
| 1918-4-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-020-9739 is a Stud,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-020-9739: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SOCKET; Material Accommodated Thickness: 0.384 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK. 15 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.