The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-054-1575, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-054-1575 |
| Primary Part Number | PFC2-0420-82 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Eyelet Outside Diameter | 0.469 INCHES NOMINAL IN |
| Drive Type | KNURLED AND SLOTTED |
| Material Accommodated Thickness | 0.060 INCHES NOMINAL IN |
| Diameter | 0.469 INCHES NOMINAL IN |
| Stud Head Height | 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Securing Device Type | SPRING |
| Distance From Engaging Member to Largest Bearing Surface of Head | 1.062 INCHES NOMINAL IN |
| Turnlock Stud Head Style | KNURLED |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Stud Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.529 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 |
|---|---|
| 2143977-14 | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| PFC2-0420-82 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 2143977-14 | 7/2 Vendor item drawing reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5325-01-054-1575 is a Stud Assembly,turnlock Fastener, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-054-1575 has 2 manufacturer part numbers on file: 2143977-14 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), PFC2-0420-82 (Penn Engineering & Manufacturing Corp).
Key specifications for PFC2-0420-82: Surface Treatment Document and Classification: QQ-P-35 TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Eyelet Outside Diameter: 0.469 INCHES NOMINAL IN; Drive Type: KNURLED AND SLOTTED; Material Accommodated Thickness: 0.060 INCHES NOMINAL IN. 14 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.