The Stud,recessed and Stepped, cataloged under National Stock Number 5307-00-515-8761, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-00-515-8761 |
| Primary Part Number | ADD4017A1 |
| Item Name | Stud,recessed and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.094 INCHES NOMINAL FIRST HOLE IN |
| Thread Length | 0.625 INCHES MINIMUM STUD THREAD IN |
| Thread Length | 0.938 INCHES MINIMUM NUT THREAD IN |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| 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 |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 5A STUD THREAD A |
| Thread Quantity Per Inch | 13 STUD THREAD |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Material | STEEL |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.156 INCHES NOMINAL FIRST 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 |
NSN 5307-00-515-8761 is a Stud,recessed and Stepped, manufactured by Fairbanks Morse, Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-515-8761 has 2 manufacturer part numbers on file: ADD4017A (Fairbanks Morse, Llc), ADD4017A1 (Fairbanks Morse, Llc).
Key specifications for ADD4017A1: Cotter Pin Hole Diameter: 0.094 INCHES NOMINAL FIRST HOLE IN; Thread Length: 0.625 INCHES MINIMUM STUD THREAD IN; Thread Length: 0.938 INCHES MINIMUM NUT THREAD IN; Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. 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.