The Stud,plain, cataloged under National Stock Number 5307-01-365-0591, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-365-0591 |
| Primary Part Number | 8909-653-001 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Thread Length | 0.880 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.880 INCHES NOMINAL STUD THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.500 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Surface Treatment | ZINC OVERALL |
| Surface Treatment | ZINC BODY |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF 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 |
|---|---|
| 8909-653-001 PRIMARY | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 8909-653-001 | 5/9 Secondary reference Entwistle Co the Defense Technology Div |
NSN 5307-01-365-0591 is a Stud,plain, manufactured by The Entwistle Company Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-365-0591 has 1 manufacturer part number on file: 8909-653-001 (The Entwistle Company Llc).
Key specifications for 8909-653-001: Thread Length: 0.880 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.880 INCHES NOMINAL STUD THREAD IN; Overall Length: 4.810 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND STUD THREAD. 15 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.