The Stud,stepped, cataloged under National Stock Number 5307-00-993-0678, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-00-993-0678 |
| Primary Part Number | AN151745 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Shank Diameter | 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.750 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM NUT THREAD IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | STEPPED |
| Thread Pitch Diameters | +0.4583 TO 0.4598 INCHES STUD THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.438 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.500 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Quantity Per Inch | 13 STUD THREAD |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
|---|---|
| AN151745 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AN151745 | 5/9 Secondary reference U.S. Government activity |
| AN151745 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5307-00-993-0678 is a Stud,stepped, manufactured by Sae International Dba Sae International, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-993-0678 has 1 manufacturer part number on file: AN151745 (Sae International Dba Sae International).
Key specifications for AN151745: Shank Diameter: 0.399 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.750 INCHES MINIMUM STUD THREAD IN; Thread Length: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM NUT THREAD IN. 16 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.