The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-428-4465, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-428-4465 |
| Primary Part Number | 3506-50-C3C |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TY I, CL 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.330 INCHES MINIMUM AND 0.339 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Securing Device Type | SPRING |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM BARREL |
| Material | STEEL BARREL |
| Grip Length | 0.500 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 |
|---|---|
| 3506-50-C3C PRIMARY | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| PF3-1/2-50 | 5/9 Secondary reference Southco Inc |
NSN 5325-01-428-4465 is a Stud,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-428-4465 has 1 manufacturer part number on file: 3506-50-C3C (Southco Inc).
Key specifications for 3506-50-C3C: Surface Treatment Document and Classification: QQ-P-416, TY I, CL 2 FED SPEC SINGLE TREATMENT RESPONSE BARREL; Drive Type: SLOTTED; Material Accommodated Thickness: 0.330 INCHES MINIMUM AND 0.339 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK. 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.