The Stud,stepped, cataloged under National Stock Number 5307-01-411-8340, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-411-8340 |
| Primary Part Number | 12447035 |
| Item Name | Stud,stepped |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shank Diameter | 0.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM B633, TY2 CLFE/ZN8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.250 INCHES NOMINAL NUT THREAD IN |
| Thread Length | 1.700 INCHES NOMINAL STUD THREAD IN |
| Material Document and Classification | ASTM A322, 1335 TO 1345 OR 4135 TO 4145 OR 8637 TO 8640 ASSN STD ALL MATERIAL RESPONSES OR ASTM A 331, 3135 TO 1345 OR 4135 TO 4145 OR 8637 TO 8640 ASSN STD ALL MATERIAL RESPONSES |
| 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 |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Thread Class | 2A STUD THREAD A |
| Thread Class | 2A NUT THREAD A |
| Thread Quantity Per Inch | 16 STUD THREAD |
| Thread Quantity Per Inch | 28 NUT THREAD |
| Material | STEEL |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) 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 |
|---|---|
| 12447035 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5307PL0801947 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5307-01-411-8340 is a Stud,stepped, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-411-8340 has 1 manufacturer part number on file: 12447035 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12447035: Shank Diameter: 0.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM B633, TY2 CLFE/ZN8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.250 INCHES NOMINAL NUT THREAD IN; Thread Length: 1.700 INCHES NOMINAL STUD THREAD IN. 17 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.