The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-266-2467, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-266-2467 |
| Primary Part Number | 79531 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Width Across Flats | 1.688 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | ASTM B584 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.250 INCHES IN |
| Nut Height | 0.375 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | COPPER ALLOY 875 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 |
|---|---|
| 79531 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 5VRP72 PIECE 15 | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 79531 | C/1 Advisory reference — outside the item-of-supply concept Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 5310-01-266-2467 is a Nut,plain,hexagon, manufactured by Ashcroft Inc Dba Heise, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-266-2467 has 2 manufacturer part numbers on file: 79531 (Ashcroft Inc Dba Heise), 5VRP72 PIECE 15 (Ashcroft Inc Dba Heise).
Key specifications for 79531: Width Across Flats: 1.688 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: ASTM B584 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 11 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.