The Stud,shouldered, cataloged under National Stock Number 5307-01-707-0899, 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 21 specifications, cited from the U.S. Government catalog. The record lists 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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 | 5307-01-707-0899 |
| Primary Part Number | HST230-8-2-8 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | HI-SHEAR SPEC 258 A286 HIGH TEMPERATURE ALLOY 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 | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS5731 OR AMS 5737 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.2500 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.2500 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut End Shank Length | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM 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 |
|---|---|
| HST230-8-2-8 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| HST230-8-2-8 | Ftb Bastener Technology Bestas (TUR) |
| HST230-8-2-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HST230-8-2-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HST230-8-2-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HST230-8-2-8 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HST230-8-2-8 PRIMARY | Hi-Shear Corporation (USA) |
| HST230-8-2-8 | Blanc Aero Technologies (FRA) |
| HST230-8-2-8 | Blanc Aero Industries Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| HST230 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5307-01-707-0899 is a Stud,shouldered, manufactured by Hi-Shear Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-707-0899 has 9 manufacturer part numbers on file: HST230-8-2-8 (Blanc Aero Industries - Groupe Lisi Aerospace), HST230-8-2-8 (Ftb Bastener Technology Bestas), HST230-8-2-8 (Sps Technologies, Llc Dba PB Fasteners), HST230-8-2-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HST230-8-2-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 4 more.
12 possible matches (shared part number, not a government interchangeability claim): 5307-01-707-1037, 5307-01-707-1568, 5307-01-707-1596. Verify interchangeability with system specifications before substitution.
Key specifications for HST230-8-2-8: Surface Treatment Document and Classification: HI-SHEAR SPEC 258 A286 HIGH TEMPERATURE ALLOY 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: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM STUD THREAD IN. 21 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.