The Stud,self-Locking, cataloged under National Stock Number 5307-01-381-8658, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-381-8658 |
| Primary Part Number | KFH-M3-18ET |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Head Height | 0.5 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 0.50 STUD THREAD |
| Thread Length | 15.7 MILLIMETERS NOMINAL LOCATION NOT OTHERWISE SPECIFIED MM |
| Style Designator | KNURLED SHANK |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Locking Feature | KNURLED SHANK |
| Material | COPPER ALLOY |
| Thread Series Designator | M STUD THREAD |
| Head Diameter | 4.8 MILLIMETERS NOMINAL 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 |
|---|---|
| 3P905438 | Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR) |
| KFH-M3-18ET PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| KFH-M3-18 | 5/9 Secondary reference Penn Engineering & Manufacturing Corp |
| 3P905438 | 5/9 Secondary reference Thales Optronics Staines Ltd |
NSN 5307-01-381-8658 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-381-8658 has 2 manufacturer part numbers on file: 3P905438 (Thales Uk Limited Dba Thales Uk Ltd Optronics), KFH-M3-18ET (Penn Engineering & Manufacturing Corp).
Key specifications for KFH-M3-18ET: Head Height: 0.5 MILLIMETERS MAXIMUM MM; Thread Pitch in Millimeters: 0.50 STUD THREAD; Thread Length: 15.7 MILLIMETERS NOMINAL LOCATION NOT OTHERWISE SPECIFIED MM; Style Designator: KNURLED SHANK. 9 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.