The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-379-9542, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-379-9542 |
| Primary Part Number | 3506-SC44A-EEP |
| 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, TY2, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Eyelet Outside Diameter | 0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.120 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Diameter | 0.281 INCHES NOMINAL IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.435 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FILLISTER |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4037 STUD |
| Material | STEEL COMP 1118 EYELET |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Eyelet Length | 0.130 INCHES MINIMUM AND 0.150 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 |
|---|---|
| 3506-SC44A-EEP PRIMARY | Southco Inc (USA) |
| PFSC35-44A-SEB | Southco Inc (USA) |
| Reference | Meaning |
|---|---|
| PFSC35-44AEPB | 5/9 Secondary reference Southco Inc |
| 4137-0168 | 7/2 Vendor item drawing reference Bae Systems Information & Electronic Systems Integration Inc. |
NSN 5325-01-379-9542 is a Stud Assembly,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-379-9542 has 2 manufacturer part numbers on file: 3506-SC44A-EEP (Southco Inc), PFSC35-44A-SEB (Southco Inc).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-664-5670. Verify interchangeability with system specifications before substitution.
Key specifications for 3506-SC44A-EEP: Surface Treatment Document and Classification: QQ-P-416, TY2, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.373 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN; Drive Type: SLOTTED; Material Accommodated Thickness: 0.120 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN. 13 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.