The Stud,self-Locking, cataloged under National Stock Number 5307-01-259-1325, 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 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-259-1325 |
| Primary Part Number | FHS-M3-8 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Thread Tolerance Class | 6G EXTERNAL STUD THREAD G |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 0.50 STUD THREAD |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Nominal Thread Size | 3.0 MILLIMETERS STUD THREAD MM |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | ISO M STUD THREAD |
| Head Diameter | 4.2 MILLIMETERS MINIMUM AND 5.0 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 1034843L00 | Mbda France (FRA) |
| PFHS-M3-8 | Psm Threadlocking & Sealing, a Division of Mckechnie Ltd (GBR) |
| 19862 | Thales Contact Solutions Inc (USA) |
| FHS-M3-8 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
NSN 5307-01-259-1325 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-259-1325 has 4 manufacturer part numbers on file: 1034843L00 (Mbda France), PFHS-M3-8 (Psm Threadlocking & Sealing, a Division of Mckechnie Ltd), 19862 (Thales Contact Solutions Inc), FHS-M3-8 (Penn Engineering & Manufacturing Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-268-3691, 5950-01-414-7701. Verify interchangeability with system specifications before substitution.
Key specifications for FHS-M3-8: Thread Tolerance Class: 6G EXTERNAL STUD THREAD G; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Pitch in Millimeters: 0.50 STUD THREAD; Style Designator: SELF-LOCKING. 11 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.