The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-146-3396, 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 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-146-3396 |
| Primary Part Number | CA1733-1 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Drive Type | SOCKET |
| Material Accommodated Thickness | 0.151 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.093 INCHES NOMINAL IN |
| Diameter | 0.615 INCHES NOMINAL IN |
| Stud Head Height | 0.219 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FILLISTER COUNTERSUNK |
| Stud Shank Major Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Grip Length | 0.157 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 |
NSN 5325-01-146-3396 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-146-3396 has 2 manufacturer part numbers on file: 331779-7 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), CA1733-1 (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA1733-1: Drive Type: SOCKET; Material Accommodated Thickness: 0.151 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Extension Length: 0.093 INCHES NOMINAL IN. 10 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.