The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-366-3665, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-366-3665 |
| Primary Part Number | M192014-5K4 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| 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 | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.361 INCHES NOMINAL IN |
| Diameter | 0.400 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Stud Shank Major Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Material | STEEL OVERALL |
| Stud Thread Size and Series/type Designator | 0.190-32 UNIFIED NATIONAL JOINT FINE (UNJF) |
| Grip Length | 0.245 INCHES MINIMUM AND 0.255 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 |
| Part Number | Manufacturer |
|---|---|
| M192014-5K4 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 192014-5K4 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 192014-5K4 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 192014-5K4 | 5/2 Secondary reference U.S. Government activity |
| 192014-5K4 | 5/9 Secondary reference U.S. Government activity |
| ST3M734-5-4 | 5/9 Secondary reference The Boeing Company Div Defense |
| 01926-5K4 | 5/9 Secondary reference U.S. Government activity |
| ST3M734-5W-4 | 3/2 Design control — primary reference U.S. Government activity |
| 01926-5K4 | 5/9 Secondary reference U.S. Government activity |
| ST3M734-5W-4 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 10119371 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5325-01-366-3665 is a Stud,turnlock Fastener, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-366-3665 has 3 manufacturer part numbers on file: M192014-5K4 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 192014-5K4 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), 192014-5K4 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for M192014-5K4: Surface Treatment Document and Classification: MIL-C-83488,TY 2,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SOCKET; Material Accommodated Thickness: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK. 12 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.