The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-288-0175, 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 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-288-0175 |
| Primary Part Number | ST3M734-6W10 |
| 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 | MIL-C-83488,TY 2,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SOCKET |
| Material Accommodated Thickness | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Document and Classification | 23-107,CAGEC 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.5067 INCHES MINIMUM AND 0.5176 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Stud Shank Major Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Stud Thread Size and Series/type Designator | 0.250-28 UNIFIED NATIONAL JOINT FINE (UNJF) |
| Grip Length | 1.085 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 |
|---|---|
| ST3M734-6W10 PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| ST3M734-6W10 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| M192014-6K10 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 192014-6K10 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| Reference | Meaning |
|---|---|
| ST3M734-6W10 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M734-6W10 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 192014-6K10 | 5/9 Secondary reference U.S. Government activity |
| ST3M734-6-10 | 5/9 Secondary reference The Boeing Company Div Defense |
| 192014-6K10 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-01-288-0175 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 5325-01-288-0175 has 4 manufacturer part numbers on file: ST3M734-6W10 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), ST3M734-6W10 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), M192014-6K10 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 192014-6K10 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products).
Key specifications for ST3M734-6W10: Surface Treatment Document and Classification: MIL-C-83488,TY 2,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SOCKET; Material Accommodated Thickness: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK. 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.