The Stud,self-Locking, cataloged under National Stock Number 5307-01-020-9828, 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 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-020-9828 |
| Primary Part Number | FH-440-4C |
| 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 | 0.190 INCHES NOMINAL NUT THREAD IN |
| Style Designator | SELF-LOCKING |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.112 INCHES NUT THREAD IN |
| Head Length | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Locking Feature | HEAD DISTORTIONS |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 40 NUT THREAD |
| Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |
| Head Diameter | 0.157 INCHES MINIMUM AND 0.219 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-440-4C PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| 2504078-11 | Honeywell International Inc. Dba Honeywell International (USA) |
| Reference | Meaning |
|---|---|
| 10333-002 | C/1 Advisory reference — outside the item-of-supply concept Astronautics Corporation of America |
NSN 5307-01-020-9828 is a Stud,self-Locking, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-020-9828 has 2 manufacturer part numbers on file: FH-440-4C (Penn Engineering & Manufacturing Corp), 2504078-11 (Honeywell International Inc. Dba Honeywell International).
Key specifications for FH-440-4C: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.190 INCHES NOMINAL NUT THREAD IN; Style Designator: SELF-LOCKING; Overall Length: 0.250 INCHES NOMINAL IN. 13 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.