The Stud,stepped, cataloged under National Stock Number 5307-01-209-8771, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-209-8771 |
| Primary Part Number | 74D421015-2035 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.380 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.880 INCHES NOMINAL NUT THREAD IN |
| Style Designator | STEPPED |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.375 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.250 INCHES NUT THREAD IN |
| Thread Class | 3A NUT THREAD A |
| Thread Class | 3A STUD THREAD A |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL COMP 4140 |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT 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 |
|---|---|
| 74D421015-2035 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5307-01-209-8771 is a Stud,stepped, manufactured by The Boeing Company Div Defense, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-209-8771 has 1 manufacturer part number on file: 74D421015-2035 (The Boeing Company Div Defense).
Key specifications for 74D421015-2035: Shank Diameter: 0.250 INCHES NOMINAL IN; Thread Length: 0.380 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.880 INCHES NOMINAL NUT THREAD IN; Style Designator: STEPPED. 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.