The Stud,self-Locking, cataloged under National Stock Number 5307-01-034-2556, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-034-2556 |
| Primary Part Number | FH-032-8C |
| Item Name | Stud,self-Locking |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.423 INCHES MINIMUM AND 0.515 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 80.0 ROCKWELL C MINIMUM |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 0.190 INCHES NUT THREAD IN |
| Head Length | 0.100 INCHES MAXIMUM IN |
| Locking Feature | SELF-CLINCHING HEAD |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 32 NUT THREAD |
| Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.241 INCHES MINIMUM AND 0.271 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 |
|---|---|
| FH-032-8C PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| 576226-42 | 7/2 Vendor item drawing reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 5307-01-034-2556 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-034-2556 has 1 manufacturer part number on file: FH-032-8C (Penn Engineering & Manufacturing Corp).
Key specifications for FH-032-8C: Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.423 INCHES MINIMUM AND 0.515 INCHES MAXIMUM NUT THREAD IN; Hardness Rating: 80.0 ROCKWELL C MINIMUM; Style Designator: SELF-LOCKING. 14 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.