The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-429-4914, 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 11 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 | 5325-01-429-4914 |
| Primary Part Number | CA18333-1 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Width Across Flats | 0.385 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BARREL |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Stud Head Height | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | HEXAGON COUNTERSUNK |
| Stud Shank Major Diameter | 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE BARREL |
| Material | STEEL COMP 301 AND STEEL COMP 302 AND STEEL COMP 303 AND STEEL COMP 303CU AND STEEL COMP 303MA AND STEEL COMP 303SE AND STEEL COMP 304 AND STEEL COMP 305 AND STEEL COMP 316 BARREL |
| Stud Thread Size and Series/type Designator | 0.1640-32 UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 0.430 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 |
|---|---|
| CA18333-1 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5325-01-429-4914 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-429-4914 has 1 manufacturer part number on file: CA18333-1 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA18333-1: Width Across Flats: 0.385 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BARREL; Turnlock Stud Shank Style: STUD SHANK; Extension Length: 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN. 11 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.