The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-346-6067, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-346-6067 |
| Primary Part Number | 6661981 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Nut End Shank Diameter | 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Thread Length | 0.625 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.281 INCHES MINIMUM NUT THREAD IN |
| Style Designator | SHOULDERED AND STEPPED |
| Material Document and Classification | MIL-C-895,HALF-HARD MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.164 INCHES NUT THREAD IN |
| Stud End Shank Diameter | 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Nut End Shank Length | 0.219 INCHES NOMINAL IN |
| Stud End Shank Length | 1.156 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 36 NUT THREAD |
| Material | COPPER ALLOY |
| Distance Across Flats | 0.625 INCHES NOMINAL IN |
| Shoulder Length | 0.344 INCHES NOMINAL IN |
| 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 |
|---|---|
| 6661981 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 6661981 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| 6661981 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5307-00-346-6067 is a Stud,shouldered and Stepped, manufactured by General Electric Company, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-346-6067 has 1 manufacturer part number on file: 6661981 (General Electric Company).
Key specifications for 6661981: Nut End Shank Diameter: 0.247 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Thread Length: 0.625 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.281 INCHES MINIMUM NUT THREAD IN; Style Designator: SHOULDERED AND STEPPED. 18 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.