The Stud,self-Locking, cataloged under National Stock Number 5307-01-108-3842, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-108-3842 |
| Primary Part Number | CFHA632-4 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Material Document and Classification | QQ-A-200/3 T4 FED SPEC SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 0.138 INCHES NUT THREAD IN |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | ALUMINUM ALLOY 2024 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| 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 |
|---|---|
| CFHA632-4 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| CHA-632-4 | 5/9 Secondary reference Penn Engineering & Manufacturing Corp |
NSN 5307-01-108-3842 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-108-3842 has 1 manufacturer part number on file: CFHA632-4 (Penn Engineering & Manufacturing Corp).
Key specifications for CFHA632-4: Material Document and Classification: QQ-A-200/3 T4 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 0.250 INCHES NOMINAL IN; Nominal Thread Size: 0.138 INCHES NUT THREAD IN; Thread Class: 2A NUT THREAD A. 6 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.