The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-325-0171, 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 13 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 | 5325-00-325-0171 |
| Primary Part Number | 40S37-24 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc Div Camloc Products |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Eyelet Outside Diameter | 0.345 INCHES NOMINAL IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.741 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A331 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Diameter | 0.380 INCHES NOMINAL IN |
| Securing Device Type | WASHER |
| Distance From Engaging Member to Largest Bearing Surface of Head | 1.128 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4037 OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.862 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 5325-00-325-0171 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 5325-00-325-0171 has 2 manufacturer part numbers on file: 40S37-24 (Fairchild Fasteners Europe - Camloc Gmbh), 40S37-24 (Howmet Global Fastening Systems Inc Div Camloc Products).
Key specifications for 40S37-24: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.345 INCHES NOMINAL IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.741 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN. 13 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.