The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-00-271-5551, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 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 | 5307-00-271-5551 |
| Primary Part Number | 615438 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Thread Length | 0.440 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.340 INCHES MAXIMUM NUT THREAD IN |
| Style Designator | SHOULDERED AND STEPPED |
| Thread Pitch Diameters | +0.2766 TO 0.2776 INCHES STUD THREAD IN |
| Material Document and Classification | MIL-S-853,CL 6,TY A MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.420 INCHES NOMINAL IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 18 STUD THREAD |
| Material | STEEL COMP 416 |
| Shoulder Length | 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 615438 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5307-00-271-5551 is a Stud,shouldered and Stepped, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-271-5551 has 1 manufacturer part number on file: 615438 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 615438: Thread Length: 0.440 INCHES NOMINAL STUD THREAD IN; Thread Length: 0.340 INCHES MAXIMUM NUT THREAD IN; Style Designator: SHOULDERED AND STEPPED; Thread Pitch Diameters: +0.2766 TO 0.2776 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.