The Stud,recessed and Stepped, cataloged under National Stock Number 5307-01-323-4866, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-323-4866 |
| Primary Part Number | 6875529-2 |
| Item Name | Stud,recessed and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES NUT THD |
| Surface Finish | 63.0 MICROINCHES SHANK |
| Surface Finish | 32.0 MICROINCHES STUD THD |
| Thread Length | 0.940 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.684 INCHES MINIMUM AND 0.768 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | RECESSED AND STEPPED |
| Material Document and Classification | EMS-85040 CAGEC 73342 MFR REF SINGLE MATERIAL RESPONSE |
| Diameter of Recessed Portion of Shank | 0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Length of Recessed Portion of Shank | 2.750 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD |
| Thread Series Designator | UNJS STUD THREAD |
| Plain Shank Diameter | 0.336 INCHES MINIMUM AND 0.337 INCHES MAXIMUM 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 |
|---|---|
| 6875529-2 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6875529-2 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5307-01-323-4866 is a Stud,recessed and Stepped, manufactured by Rolls-Royce Corporation, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-323-4866 has 1 manufacturer part number on file: 6875529-2 (Rolls-Royce Corporation).
Key specifications for 6875529-2: Surface Finish: 32.0 MICROINCHES NUT THD; Surface Finish: 63.0 MICROINCHES SHANK; Surface Finish: 32.0 MICROINCHES STUD THD; Thread Length: 0.940 INCHES NOMINAL 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.