The Stud,shouldered and Stepped, cataloged under National Stock Number 5307-01-381-6266, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Gst Industries Inc.. Government technical data includes 5 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 | 5307-01-381-6266 |
| Primary Part Number | 81399 |
| Item Name | Stud,shouldered and Stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Gst Industries Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Supplementary Features | T.O. 9H2-5-206-3 |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 81399 PRIMARY | Gst Industries Inc. (USA) |
NSN 5307-01-381-6266 is a Stud,shouldered and Stepped, manufactured by Gst Industries Inc., classified under FSC 5307, Studs. Status: active.
NSN 5307-01-381-6266 has 1 manufacturer part number on file: 81399 (Gst Industries Inc.).
Key specifications for 81399: Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Supplementary Features: T.O. 9H2-5-206-3; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 1.640 INCHES NOMINAL IN. 5 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.