The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-401-8575, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 26 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-401-8575 |
| Primary Part Number | 272T6061001-001 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN |
| Nut End Shank Diameter | 0.248 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 0.227 INCHES MINIMUM AND 0.310 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | SHOULDERED AND STEPPED |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.562 INCHES NOMINAL IN |
| Stud End Shank Diameter | 0.310 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut End Shank Length | 0.520 INCHES NOMINAL IN |
| Stud End Shank Length | 0.605 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 4130 |
| Distance Across Flats | 0.437 INCHES NOMINAL IN |
| Shoulder Length | 0.437 INCHES NOMINAL IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.090 INCHES NOMINAL FIRST HOLE IN |
| Distance From Cotter Pin Hole Centerline to Nut End | 2.280 INCHES NOMINAL SECOND HOLE IN |
| 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 |
|---|---|
| 272T6061001-001 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5307-00-401-8575 is a Stud,shouldered and Stepped, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-401-8575 has 1 manufacturer part number on file: 272T6061001-001 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 272T6061001-001: Cotter Pin Hole Diameter: 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN; Nut End Shank Diameter: 0.248 INCHES NOMINAL IN; Thread Length: 0.500 INCHES NOMINAL NUT THREAD IN; Thread Length: 0.227 INCHES MINIMUM AND 0.310 INCHES MAXIMUM STUD THREAD IN. 26 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.