The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-385-8775, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-385-8775 |
| Primary Part Number | CA18161-6HS |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Drive Type | SLOTTED |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.373 INCHES NOMINAL IN |
| Stud Head Height | 0.130 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FILLISTER COUNTERSUNK |
| Stud Shank Major Diameter | 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE BARREL |
| Material | STEEL COMP 303 BARREL |
| Stud Thread Size and Series/type Designator | 0.1640-32 UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 0.501 INCHES MINIMUM AND 0.570 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 |
|---|---|
| CA18161-6HS PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
NSN 5325-01-385-8775 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-385-8775 has 1 manufacturer part number on file: CA18161-6HS (Howmet Global Fastening Systems Inc. Div Tridair Products).
Key specifications for CA18161-6HS: Drive Type: SLOTTED; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.373 INCHES NOMINAL IN; Stud Head Height: 0.130 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.