The Stud,self-Locking, cataloged under National Stock Number 5307-01-726-2261, 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 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-726-2261 |
| Primary Part Number | FH4-440-8 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Thread Length | 0.415 INCHES NOMINAL STUD THREAD IN |
| Style Designator | SELF-LOCKING |
| Nominal Thread Size | 0.112 INCHES STUD THREAD IN |
| Head Length | 0.085 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 40 STUD THREAD |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNF STUD THREAD |
| Head Diameter | 0.176 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 |
|---|---|
| FH4-440-8 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
NSN 5307-01-726-2261 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-726-2261 has 1 manufacturer part number on file: FH4-440-8 (Penn Engineering & Manufacturing Corp).
Key specifications for FH4-440-8: Thread Length: 0.415 INCHES NOMINAL STUD THREAD IN; Style Designator: SELF-LOCKING; Overall Length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Nominal Thread Size: 0.112 INCHES STUD THREAD IN. 8 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.