The Stud,shouldered, cataloged under National Stock Number 5307-01-644-2341, 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 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-01-644-2341 |
| Primary Part Number | HL346-6-4-1 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Nut End Shank Diameter | 0.2172 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM IN |
| Thread Length | 0.063 INCHES NOMINAL NUT THREAD A IN |
| Thread Length | 0.186 INCHES NOMINAL NUT THREAD B IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS4928 OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Nominal Thread Size | 0.182 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Stud End Shank Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | LUBRICANT OVERALL |
| Nut End Shank Length | 0.325 INCHES NOMINAL IN |
| Stud End Shank Length | 0.325 INCHES NOMINAL IN |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 32 STUD THREAD |
| Material | TITANIUM ALLOY UNS R56400 |
| Shoulder Length | 0.064 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) STUD 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 |
|---|---|
| HL346-6-4-1 | Huck International, Inc (USA) |
| HL346-6-4-1 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL346-6-4-1 | West Coast Aerospace, Inc. (USA) |
| HL346-6-4-1 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL346-6-4-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5307-01-644-2341 is a Stud,shouldered, manufactured by Hi-Shear Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-644-2341 has 4 manufacturer part numbers on file: HL346-6-4-1 (Huck International, Inc), HL346-6-4-1 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL346-6-4-1 (West Coast Aerospace, Inc.), HL346-6-4-1 (Hi-Shear Corporation).
Key specifications for HL346-6-4-1: Nut End Shank Diameter: 0.2172 INCHES MINIMUM AND 0.2182 INCHES MAXIMUM IN; Thread Length: 0.063 INCHES NOMINAL NUT THREAD A IN; Thread Length: 0.186 INCHES NOMINAL NUT THREAD B IN; Style Designator: SHOULDERED. 17 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.