The Stud,self-Locking, cataloged under National Stock Number 5307-01-075-6211, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-075-6211 |
| Primary Part Number | CHC-632-4 |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Thread Length | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM NUT THREAD IN |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.138 INCHES NUT THREAD IN |
| Head Length | 0.075 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.212 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 |
|---|---|
| CHC-632-4 PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 156BSTKS-8 | 5/9 Secondary reference U.S. Government activity |
| CFHC-632-4 | 5/9 Secondary reference Penn Engineering & Manufacturing Corp |
| 610015P54 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5307-01-075-6211 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-075-6211 has 1 manufacturer part number on file: CHC-632-4 (Penn Engineering & Manufacturing Corp).
Key specifications for CHC-632-4: Thread Length: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM NUT THREAD IN; Overall Length: 0.309 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND NUT THREAD; Nominal Thread Size: 0.138 INCHES NUT THREAD IN. 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.