The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-542-2134, 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 Camloc Products. Government technical data includes 9 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 | 5325-01-542-2134 |
| Primary Part Number | 40S161-1-1AA |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc Div Camloc Products |
| Status | ACTIVE |
| Eyelet Outside Diameter | 0.371 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN |
| Drive Type | CROSS RECESS |
| Diameter | 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN |
| Stud Head Height | 0.102 INCHES NOMINAL IN |
| Securing Device Type | SPRING |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.630 INCHES NOMINAL IN |
| Turnlock Stud Head Style | STUD HEAD |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4037 STUD |
| 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 |
|---|---|
| 40S161-1-1AA PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
NSN 5325-01-542-2134 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-542-2134 has 1 manufacturer part number on file: 40S161-1-1AA (Howmet Global Fastening Systems Inc Div Camloc Products).
Key specifications for 40S161-1-1AA: Eyelet Outside Diameter: 0.371 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN; Drive Type: CROSS RECESS; Diameter: 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN; Stud Head Height: 0.102 INCHES NOMINAL IN. 9 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.