The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-022-0065, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dayton-Walther Corp. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-022-0065 |
| Primary Part Number | N56 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dayton-Walther Corp |
| Status | ACTIVE |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY HGT |
| Nondefinitive Spec/std Data | A TYPE |
| Nut Height | 0.250 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Bearing Surface Type | 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 |
|---|---|
| N56 PRIMARY | Dayton-Walther Corp (USA) |
| 2022 PRIMARY | Abm Equipment, Llc (USA) |
| Reference | Meaning |
|---|---|
| 220065 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 220065 | 5/9 Secondary reference General Motors Corp |
| FFB571TYPEA | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-022-0065 is a Nut,plain,hexagon, manufactured by Dayton-Walther Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-022-0065 has 2 manufacturer part numbers on file: N56 (Dayton-Walther Corp), 2022 (Abm Equipment, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 4730-00-105-2478, 4730-00-601-2611, 5310-00-763-0041. Verify interchangeability with system specifications before substitution.
Key specifications for N56: Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL; 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.