The Stud,self-Locking, cataloged under National Stock Number 5307-01-433-5997, 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 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-433-5997 |
| Primary Part Number | FH-M4-25 ZI |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Surface Treatment | ZINC OVERALL |
| 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 |
|---|---|
| FH-M4-25 ZI PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| 77091763 | Nokia Networks France (FRA) |
| Reference | Meaning |
|---|---|
| 77091763 | 5/9 Secondary reference Alcatel Telspace |
| 91641722 | 5/9 Secondary reference Thales Sa |
NSN 5307-01-433-5997 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-433-5997 has 2 manufacturer part numbers on file: FH-M4-25 ZI (Penn Engineering & Manufacturing Corp), 77091763 (Nokia Networks France).
Key specifications for FH-M4-25 ZI: Special Features: FLUSH HEAD; Surface Treatment: ZINC OVERALL. 1 specification is 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.