The Stud,self-Locking, cataloged under National Stock Number 5307-01-236-0573, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-236-0573 |
| Primary Part Number | FHA-0420-12 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Thread Length | 0.600 INCHES MINIMUM AND 0.640 INCHES MAXIMUM NUT THREAD IN |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Head Length | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Locking Feature | HEAD DISTORTIONS OR SELF-CLINCHING HEAD |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Material | ALUMINUM ALLOY 2024 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.313 INCHES MINIMUM AND 0.343 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 |
|---|---|
| FHA-0420-12 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 0017549-002 | 5/9 Secondary reference Peraton Inc |
NSN 5307-01-236-0573 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-236-0573 has 1 manufacturer part number on file: FHA-0420-12 (Penn Engineering & Manufacturing Corp).
Key specifications for FHA-0420-12: Thread Length: 0.600 INCHES MINIMUM AND 0.640 INCHES MAXIMUM NUT THREAD IN; Overall Length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND NUT THREAD; Nominal Thread Size: 0.250 INCHES NUT THREAD IN. 10 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.