The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-379-8274, 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 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-01-379-8274 |
| Primary Part Number | 121J-535-SS |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SLOTTED |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Shank Neck Length | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Grip Length | 0.340 INCHES MINIMUM AND 0.360 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-535-SS PRIMARY | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| AJ5-35SS | 5/9 Secondary reference Southco Inc |
| K94T0012-16C | 5/9 Secondary reference Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co |
NSN 5325-01-379-8274 is a Stud,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-379-8274 has 1 manufacturer part number on file: 121J-535-SS (Southco Inc).
Key specifications for 121J-535-SS: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SLOTTED; Turnlock Stud Shank Style: STUD SHANK; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.