The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-810-0678, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Aero International, Llc Dba Ams Engineered Solutions. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-810-0678 |
| Primary Part Number | 99868 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Aero International, Llc Dba Ams Engineered Solutions |
| Status | ACTIVE |
| Width Across Flats | 0.996 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Thread Series | UNEF |
| Hole Configuration Style | CONFIGURATION B |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Nut Height | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.046 INCHES NOMINAL IN |
| Countersink Angle | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Hole Type and Quantity | 2 DRILLED |
| 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 |
|---|---|
| 99868 PRIMARY | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| 99868 | 5/9 Secondary reference U.S. Government activity |
| 02-P01958U001 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 99868 | 3/9 Design control — primary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 99868 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 5310-00-810-0678 is a Nut,plain,hexagon, manufactured by Aero International, Llc Dba Ams Engineered Solutions, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-810-0678 has 1 manufacturer part number on file: 99868 (Aero International, Llc Dba Ams Engineered Solutions).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-599-1196. Verify interchangeability with system specifications before substitution.
Key specifications for 99868: Width Across Flats: 0.996 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES; Thread Series: UNEF; Hole Configuration Style: CONFIGURATION B. 15 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.