The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-194-5545, 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 Tridair Products. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-194-5545 |
| Primary Part Number | CA17089-1HS |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL |
| Drive Type | SOCKET |
| Material Accommodated Thickness | 0.520 INCHES NOMINAL IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.300 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE BARREL |
| Diameter | 0.552 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Stud Head Height | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | STUD HEAD |
| Stud Shank Major Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM BARREL |
| Minor Diameter | 0.345 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BARREL |
| Stud Thread Size and Series/type Designator | 0.250-28 UNF |
| Grip Length | 0.150 INCHES MINIMUM AND 0.220 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 |
|---|---|
| CA17089-1HS PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 307871-001 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5325-01-194-5545 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-194-5545 has 1 manufacturer part number on file: CA17089-1HS (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA17089-1HS: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL; Drive Type: SOCKET; Material Accommodated Thickness: 0.520 INCHES NOMINAL IN; Turnlock Stud Shank Style: STUD SHANK. 16 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.