The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-184-3829, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-184-3829 |
| Primary Part Number | 40S5-25 |
| 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 | 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Drive Type | CROSS RECESS |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| Material Document and Classification | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A109 ASSN STD 2ND MATERIAL RESPONSE EYELET |
| Diameter | 0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN |
| Stud Head Height | 0.102 INCHES NOMINAL IN |
| Securing Device Type | GROMMET |
| Distance From Engaging Member to Largest Bearing Surface of Head | 1.143 INCHES NOMINAL IN |
| Turnlock Stud Head Style | STUD HEAD |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4037 STUD |
| Material | STEEL EJECTOR SPRING |
| Material | STEEL PIN |
| Material | STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL EYELET |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.247 INCHES MINIMUM AND 0.267 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 |
|---|---|
| 40S5-25 PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 1142005-25 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| BACS21ED25R | 7/2 Vendor item drawing reference U.S. Government activity |
| BACS21X25R | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-184-3829 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 5325-01-184-3829 has 2 manufacturer part numbers on file: 40S5-25 (Howmet Global Fastening Systems Inc Div Camloc Products), 1142005-25 (Monadnock Company, the Dba Lisi Aerospace).
Key specifications for 40S5-25: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Drive Type: CROSS RECESS; Material Document and Classification: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN. 18 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.