The Stud,stepped, cataloged under National Stock Number 5307-00-149-4502, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Precision Airmotive Llc Dba Precision Airmotive. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-149-4502 |
| Primary Part Number | P70549-1 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Precision Airmotive Llc Dba Precision Airmotive |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.500 INCHES MINIMUM NUT THREAD IN |
| Thread Length | 0.563 INCHES MINIMUM STUD THREAD IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Style Designator | STEPPED |
| Thread Pitch Diameters | +0.2844 TO 0.2864 INCHES STUD THREAD IN |
| 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 |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 8740 OR STEEL COMP 4130 |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS 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 |
|---|---|
| P70549-1 PRIMARY | Precision Airmotive Llc Dba Precision Airmotive (USA) |
| Reference | Meaning |
|---|---|
| P70549-1 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 5307-00-149-4502 is a Stud,stepped, manufactured by Precision Airmotive Llc Dba Precision Airmotive, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-149-4502 has 1 manufacturer part number on file: P70549-1 (Precision Airmotive Llc Dba Precision Airmotive).
Key specifications for P70549-1: Shank Diameter: 0.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.500 INCHES MINIMUM NUT THREAD IN; Thread Length: 0.563 INCHES MINIMUM STUD THREAD IN. 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.