The Stud,stepped, cataloged under National Stock Number 5307-00-323-5077, is classified within Federal Supply Class 5307 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-323-5077 |
| Primary Part Number | 37931 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — No Item Name Available |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Thread Series Designator | UNF NUT THREAD |
| Thread Length | 0.500 INCHES MAXIMUM STUD THREAD IN |
| Material | STEEL |
| Thread Series Designator | UNS STUD THREAD |
| Thread Class | 3A NUT THREAD A |
| Cotter Pin Hole Diameter | 0.070 INCHES NOMINAL FIRST HOLE IN |
| Thread Length | 0.500 INCHES MINIMUM NUT THREAD IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Style Designator | STEPPED |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Thread Pitch Diameters | +0.2779 TO 0.2794 INCHES STUD THREAD IN |
| Surface Treatment | CADMIUM OVERALL |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.141 INCHES NOMINAL FIRST HOLE IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5307-00-323-5077 is a Stud,stepped, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5307 (No Item Name Available). Status: active.
NSN 5307-00-323-5077 has 4 cross-referenced part numbers: 37931 (General Motors Corp), 37931 (Rolls-Royce Corporation), 37931 (Allison Transmission Inc Dba Allison Transmission, Inc), 37931 (General Motors Llc Dba General Motors Llc).
There are 2 known substitutes for 5307-00-323-5077: 5975-01-317-3259, 6645-01-484-0777. Verify interchangeability with system specifications before substitution.
Key specifications for 37931: Overall Length: 1.188 INCHES NOMINAL IN; Thread Series Designator: UNF NUT THREAD; Thread Length: 0.500 INCHES MAXIMUM STUD THREAD IN; Material: STEEL. 20 total characteristics are documented in the Federal Logistics Information System.