The Stud,shouldered, cataloged under National Stock Number 5307-01-707-2257, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-707-2257 |
| Primary Part Number | HST230-8-2-7 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | HI SHEAR SPEC 258 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Nut End Shank Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Thread Length | 0.320 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.4375 INCHES NOMINAL STUD THREAD IN |
| Supplementary Features | BOTH ENDS HAVE HEX DRIVE |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS5731 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OR AMS5737 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut End Shank Length | 0.125 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 28 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | IRON ALLOY 660 |
| Shoulder Length | 0.077 INCHES MINIMUM AND 0.087 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) STUD THREAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| HST230-8-2-7 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HST230 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5307-01-707-2257 is a Stud,shouldered, manufactured by Hi-Shear Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-707-2257 has 1 manufacturer part number on file: HST230-8-2-7 (Hi-Shear Corporation).
8 possible matches (shared part number, not a government interchangeability claim): 5307-01-711-2187, 5307-01-716-4428, 5307-01-717-7166. Verify interchangeability with system specifications before substitution.
Key specifications for HST230-8-2-7: Surface Treatment Document and Classification: HI SHEAR SPEC 258 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Nut End Shank Diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Thread Length: 0.320 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.4375 INCHES NOMINAL STUD THREAD IN. 20 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.