The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-01-101-6138, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-01-101-6138 |
| Primary Part Number | 7603773-00 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Leroi International Inc Dba Compair Leroi |
| Status | ACTIVE |
| Thread Length | 0.700 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.637 INCHES NOMINAL NUT THREAD IN |
| Style Designator | SHOULDERED AND STEPPED |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL |
| Distance Across Flats | 0.500 INCHES NOMINAL IN |
| Shoulder Length | 0.070 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 |
|---|---|
| 7603773-00 PRIMARY | Leroi International Inc Dba Compair Leroi (USA) |
| Reference | Meaning |
|---|---|
| 7603773-00 | 3/9 Design control — primary reference Compair Kellogg Div of Robertshaw Controls Co |
| 7603773-00 | 5/9 Secondary reference U.S. Government activity |
NSN 5307-01-101-6138 is a Stud,shouldered and Stepped, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-101-6138 has 1 manufacturer part number on file: 7603773-00 (Leroi International Inc Dba Compair Leroi).
Key specifications for 7603773-00: Thread Length: 0.700 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.637 INCHES NOMINAL NUT THREAD IN; Style Designator: SHOULDERED AND STEPPED; Overall Length: 1.500 INCHES NOMINAL IN. 13 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.