The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-554-4544, 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 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-554-4544 |
| Primary Part Number | CA17031-9HS |
| 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 | QQ0+0416 TYPE II, CL. 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SOCKET |
| Material Document and Classification | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.523 INCHES NOMINAL IN |
| Stud Head Height | 0.064 INCHES NOMINAL IN |
| Turnlock Stud Head Style | STUD HEAD |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
| 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 |
|---|---|
| CA17031-9HS PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5325-01-554-4544 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-554-4544 has 1 manufacturer part number on file: CA17031-9HS (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA17031-9HS: Surface Treatment Document and Classification: QQ0+0416 TYPE II, CL. 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SOCKET; Material Document and Classification: MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Diameter: 0.523 INCHES NOMINAL IN. 8 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.