The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-477-1609, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-477-1609 |
| Primary Part Number | 3522-S42-Z3B |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-B-416, TY 2, CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Eyelet Outside Diameter | 0.375 INCHES NOMINAL IN |
| Material Accommodated Thickness | 0.100 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Diameter | 0.375 INCHES NOMINAL IN |
| Stud Head Height | 0.450 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Surface Treatment | CHROMATE AND CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.215 INCHES NOMINAL IN |
| Eyelet Length | 0.120 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 |
| Part Number | Manufacturer |
|---|---|
| 3522-S42-Z3B PRIMARY | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| PVS35-42CBB | 5/9 Secondary reference Southco Inc |
NSN 5325-01-477-1609 is a Stud Assembly,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-477-1609 has 1 manufacturer part number on file: 3522-S42-Z3B (Southco Inc).
Key specifications for 3522-S42-Z3B: Surface Treatment Document and Classification: QQ-B-416, TY 2, CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Eyelet Outside Diameter: 0.375 INCHES NOMINAL IN; Material Accommodated Thickness: 0.100 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Diameter: 0.375 INCHES NOMINAL 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.