The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-203-5376, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Voi-Shan Products. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-203-5376 |
| Primary Part Number | BACF34D4R7-0 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SOCKET |
| Material Accommodated Thickness | 0.413 INCHES MINIMUM AND 0.474 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.799 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Stud Head Height | 0.035 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Stud Shank Major Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 8740 OVERALL |
| Stud Thread Size and Series/type Designator | 0.1640-32 UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 0.438 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 |
| Part Number | Manufacturer |
|---|---|
| BACF34D4R7-0 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| Reference | Meaning |
|---|---|
| BACF34D4R7-0 | 5/2 Secondary reference U.S. Government activity |
| BACF34D4R7-0 | 3/2 Design control — primary reference U.S. Government activity |
| BACF34D4R7-0 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-203-5376 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Voi-Shan Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-203-5376 has 1 manufacturer part number on file: BACF34D4R7-0 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products).
Key specifications for BACF34D4R7-0: Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SOCKET; Material Accommodated Thickness: 0.413 INCHES MINIMUM AND 0.474 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.