The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-451-0229, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-451-0229 |
| Item Name | Stud Assembly,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 OVERALL |
| Eyelet Outside Diameter | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.064 INCHES NOMINAL IN |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.281 INCHES NOMINAL IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.380 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FILLISTER |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 1118 OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.193 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Eyelet 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 |
|---|---|
| DME1400-6A1 | 5/9 Secondary reference U.S. Government activity |
| PFSC3-1-2-38ABLK | 3/9 Design control — primary reference Southco Inc |
NSN 5325-00-451-0229 is a Stud Assembly,turnlock Fastener, classified under FSC 5325, Fastening Devices. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-461-1132. Verify interchangeability with system specifications before substitution.
Key specifications for 5325-00-451-0229: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.064 INCHES NOMINAL IN. 13 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.