The Nut,self-Locking,welding, cataloged under National Stock Number 5310-01-726-2875, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co Div Ilmon. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-726-2875 |
| Primary Part Number | 37986 |
| Item Name | Nut,self-Locking,welding |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co Div Ilmon |
| Status | ACTIVE |
| Body Diameter | 0.73 INCHES NOMINAL IN |
| Width Across Flats | 0.80 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.50 INCHES IN |
| Nut Style | SELF-LOCKING WELDING |
| Thread Class | 2B |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 37986 PRIMARY | Fastenal Company Dba Fastenal Co Div Ilmon (USA) |
| Reference | Meaning |
|---|---|
| 11B5091624 | D/9 Drawing number reference only Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
| 11B5091624-3 | 7/2 Vendor item drawing reference Summertime Lawn Care |
NSN 5310-01-726-2875 is a Nut,self-Locking,welding, manufactured by Fastenal Company Dba Fastenal Co Div Ilmon, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-726-2875 has 1 manufacturer part number on file: 37986 (Fastenal Company Dba Fastenal Co Div Ilmon).
Key specifications for 37986: Body Diameter: 0.73 INCHES NOMINAL IN; Overall Height: 0.47 INCHES NOMINAL IN; Width Across Flats: 0.80 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 9 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.