The Stud,welding, cataloged under National Stock Number 5307-01-129-0262, 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 18 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 | 5307-01-129-0262 |
| Primary Part Number | CPR103899 |
| Item Name | Stud,welding |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| Thread Length | 0.082 INCHES NOMINAL NUT THREAD IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Style Designator | WELDING |
| Unthreaded End Diameter | 0.868 INCHES NOMINAL IN |
| Material Document and Classification | Q-S-624 FED SPEC 13TH MATERIAL RESPONSE |
| Length Excluding Fluxed Welding Tip | 3.850 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Unthreaded End Length | 1.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.500 INCHES NUT THREAD IN |
| Shoulder Diameter | 1.380 INCHES NOMINAL IN |
| Thread Class | 2A NUT THREAD A |
| Test Data Document | 19207-CPR103899 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Thread Quantity Per Inch | 20 NUT THREAD |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 |
| Shoulder Length | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| CPR103899 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5307-01-129-0262 is a Stud,welding, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5307, Studs. Status: active.
NSN 5307-01-129-0262 has 1 manufacturer part number on file: CPR103899 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for CPR103899: Surface Finish: 125.0 MICROINCHES OVERALL; Thread Length: 0.082 INCHES NOMINAL NUT THREAD IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Style Designator: WELDING. 18 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.