The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-218-7501, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Telephonics Corp. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-218-7501 |
| Primary Part Number | F235A013-600 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Eyelet Outside Diameter | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Diameter | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Stud Head Height | 0.285 INCHES NOMINAL IN |
| Securing Device Type | SPRING |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.380 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Surface Treatment | CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Stud Assembly Style | STUD ASSEMBLY |
| Stud Diameter | 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Eyelet Length | 0.070 INCHES MINIMUM AND 0.090 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 |
|---|---|
| F235A013-600 | Telephonics Corp (USA) |
| Reference | Meaning |
|---|---|
| PFSC 3 1/2-38ASS IY | 5/9 Secondary reference Southco Inc |
| PFSC35-38ASS | 5/9 Secondary reference Southco Inc |
| PFSC35-38ASS IY | 3/9 Design control — primary reference Southco Inc |
| PRSC3 1-2-38 | 5/9 Secondary reference Southco Inc |
| PRSC31/2-38A.SS/1YCUP | C/1 Advisory reference — outside the item-of-supply concept Southco Inc |
| PFSC31/2-38ASS/IYCUP | C/1 Advisory reference — outside the item-of-supply concept Southco Inc |
NSN 5325-01-218-7501 is a Stud Assembly,turnlock Fastener, manufactured by Telephonics Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-218-7501 has 1 manufacturer part number on file: F235A013-600 (Telephonics Corp).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-373-3980. Verify interchangeability with system specifications before substitution.
Key specifications for F235A013-600: Eyelet Outside Diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Drive Type: SLOTTED; Diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Stud Head Height: 0.285 INCHES NOMINAL IN. 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.