The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-503-8255, 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 9 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-503-8255 |
| Primary Part Number | D5-PFSC35-38AZBTNA |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN |
| Stud Head Height | 0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Stud Shank Major Diameter | 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Grip Length | 0.440 INCHES MINIMUM AND 0.450 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 |
|---|---|
| D5-PFSC35-38AZBTNA PRIMARY | Southco Inc (USA) |
| D5-PFSC35-AZBTNA PRIMARY | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| 012-0039-030 | 7/2 Vendor item drawing reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| PFSC35-44ADZBB | 3/9 Design control — primary reference Southco Inc |
| D5-PFSC35-38AZBTNA | 5/2 Secondary reference U.S. Government activity |
| 3506-SC44AD-Z3B | 5/9 Secondary reference Southco Inc |
| D5-PFSC35-AZBTNA | 5/2 Secondary reference U.S. Government activity |
NSN 5325-01-503-8255 is a Stud,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-503-8255 has 2 manufacturer part numbers on file: D5-PFSC35-38AZBTNA (Southco Inc), D5-PFSC35-AZBTNA (Southco Inc).
Key specifications for D5-PFSC35-38AZBTNA: Surface Treatment Document and Classification: QQ-P-416 TYPE 1 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN; Stud Head Height: 0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN. 9 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.