The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-545-3651, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-545-3651 |
| Primary Part Number | 231421-4 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products |
| Status | ACTIVE |
| Width Across Flats | 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Hardness Rating | 85.5 ROCKWELL B MINIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Nut Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Countersink Angle | 105.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| 231421-4 PRIMARY | Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products (USA) |
| Reference | Meaning |
|---|---|
| 500371-4 | 5/9 Secondary reference Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products |
NSN 5310-00-545-3651 is a Nut,plain,hexagon, manufactured by Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-545-3651 has 1 manufacturer part number on file: 231421-4 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products).
3 possible matches (shared part number, not a government interchangeability claim): 2835-01-055-6557, 1630-01-060-6875, 5962-01-231-3774. Verify interchangeability with system specifications before substitution.
Key specifications for 231421-4: Width Across Flats: 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN; Thread Series: UNF; Hardness Rating: 85.5 ROCKWELL B MINIMUM; Thread Direction: RIGHT-HAND. 12 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.