The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-342-8644, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-342-8644 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL |
| Head Length | 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Document and Classification | AMS 6274 ASSN STD SINGLE MATERIAL RESPONSE BARREL |
| Stud Head Height | 0.282 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN |
| Shank Neck Length | 0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FILLISTER WING |
| Stud Shank Major Diameter | 0.212 INCHES MINIMUM AND 0.217 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE BARREL |
| Material | STEEL COMP 8620 BARREL |
| Grip Length | 0.550 INCHES MINIMUM AND 0.570 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 |
|---|---|
| 50-007W31 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-342-8644 is a Stud,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-342-8644: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL; Head Length: 0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Material Document and Classification: AMS 6274 ASSN STD SINGLE MATERIAL RESPONSE BARREL. 11 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.