The Stud,recessed and Stepped, cataloged under National Stock Number 5307-00-674-5205, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 14 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-674-5205 |
| Primary Part Number | 3X187024 |
| Item Name | Stud,recessed and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Thread Length | 0.375 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 0.312 INCHES MAXIMUM STUD THREAD IN |
| Style Designator | RECESSED AND STEPPED |
| Thread Pitch Diameters | +0.2103 TO 0.2150 INCHES STUD THREAD IN |
| Diameter of Recessed Portion of Shank | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.250 INCHES STUD THREAD IN |
| Length of Recessed Portion of Shank | 0.157 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL |
| 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 |
NSN 5307-00-674-5205 is a Stud,recessed and Stepped, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-674-5205 has 2 manufacturer part numbers on file: 187024 (Eaton Aerospace, Llc Dba Jackson South), 3X187024 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-694-7126. Verify interchangeability with system specifications before substitution.
Key specifications for 3X187024: Thread Length: 0.375 INCHES MAXIMUM NUT THREAD IN; Thread Length: 0.312 INCHES MAXIMUM STUD THREAD IN; Style Designator: RECESSED AND STEPPED; Thread Pitch Diameters: +0.2103 TO 0.2150 INCHES STUD THREAD IN. 14 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.