The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-577-8789, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Industrial Technologies and Services Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-577-8789 |
| Primary Part Number | 21283 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Industrial Technologies and Services Llc |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Nut Height | 0.406 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Bearing Surface Type | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-00-577-8789 is a Nut,plain,hexagon, manufactured by Industrial Technologies and Services Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-577-8789 has 2 manufacturer part numbers on file: 21283 (Industrial Technologies and Services Llc), 376 (Industrial Technologies and Services Llc).
2 possible matches (shared part number, not a government interchangeability claim): 7035-01-095-9320, 2910-01-188-3244. Verify interchangeability with system specifications before substitution.
Key specifications for 21283: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.750 INCHES IN. 10 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.