The Stud,welding, cataloged under National Stock Number 5307-01-686-8498, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-01-686-8498 |
| Item Name | Stud,welding |
| FSC / FSG | 5307 / 53 — Studs |
| Status | ACTIVE |
| Thread Length | 0.750 INCHES NOMINAL STUD THREAD IN |
| Style Designator | WELDING |
| Unthreaded End Diameter | 0.210 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Length Excluding Fluxed Welding Tip | 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN |
| Unthreaded End Length | 0.657 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Nominal Thread Size | 0.2500 INCHES STUD THREAD IN |
| Specification/standard Data | 81349-MIL-S-24149/1D GOVERNMENT SPECIFICATION |
| Shoulder Diameter | 0.495 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Thread Class | 2A STUD THREAD A |
| Thread Quantity Per Inch | 20 STUD THREAD |
| Material | STEEL |
| Shoulder Length | 0.093 INCHES NOMINAL IN |
| 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 |
| Reference | Meaning |
|---|---|
| MIL-S-24149/1 | 4/1 Identification reference U.S. Government activity |
| M24149/1-505 | 2/2 Government specification standardization U.S. Government activity |
NSN 5307-01-686-8498 is a Stud,welding, classified under FSC 5307, Studs. Status: active.
Key specifications for 5307-01-686-8498: Thread Length: 0.750 INCHES NOMINAL STUD THREAD IN; Style Designator: WELDING; Unthreaded End Diameter: 0.210 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Length Excluding Fluxed Welding Tip: 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM 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.