The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-266-3150, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Southco Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-266-3150 |
| Primary Part Number | 121J-W440-SE-Z3C |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Head Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Eyelet Outside Diameter | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Material Accommodated Thickness | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Stud Head Height | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FILLISTER WING |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.245 INCHES MINIMUM AND 0.250 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 |
|---|---|
| 121J-W440-SE-Z3C PRIMARY | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| 5310-039-0001 | 7/2 Vendor item drawing reference Textron Systems Corporation Dba Textron Systems Corp |
| AJW4-60SE | 5/9 Secondary reference Southco Inc |
NSN 5325-01-266-3150 is a Stud Assembly,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-266-3150 has 1 manufacturer part number on file: 121J-W440-SE-Z3C (Southco Inc).
Key specifications for 121J-W440-SE-Z3C: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Head Length: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Eyelet Outside Diameter: 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN; Material Accommodated Thickness: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN. 11 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.