The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-258-6042, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Abaco Systems Limited. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-258-6042 |
| Primary Part Number | 421-4-25184-000 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Abaco Systems Limited |
| Status | ACTIVE |
| Width Across Flats | 4.0 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 6H INTERNAL |
| Thread Series | M |
| Thread Pitch in Millimeters | 0.40 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.0 MILLIMETERS MM |
| Nut Height | 1.6 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 421-4-25184-000 | Abaco Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| L200P7B91 | 3/9 Design control — primary reference Genicom Corp |
| 34000652-2002 | 5/9 Secondary reference Genicom Corp |
NSN 5310-01-258-6042 is a Nut,plain,hexagon, manufactured by Abaco Systems Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-258-6042 has 1 manufacturer part number on file: 421-4-25184-000 (Abaco Systems Limited).
Key specifications for 421-4-25184-000: Width Across Flats: 4.0 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 6H INTERNAL; Thread Series: M; Thread Pitch in Millimeters: 0.40. 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.