The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-899-2685, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allmetal Screw Products Corp. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-899-2685 |
| Primary Part Number | 2-56UNC3B1-8X5-64 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allmetal Screw Products Corp |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.086 INCHES IN |
| Nut Height | 0.078 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 303 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 |
|---|---|
| 120000-1586 | Invensys Systems, Inc. Dba Schneider Electric (USA) |
| 2-56UNC3B1-8X5-64 PRIMARY | Allmetal Screw Products Corp (USA) |
| TSI1586 | Invensys Systems, Inc. Dba Schneider Electric (USA) |
| Reference | Meaning |
|---|---|
| 2-560NC3B1-8X5- | C/1 Advisory reference — outside the item-of-supply concept Allmetal Screw Products Corp |
NSN 5310-00-899-2685 is a Nut,plain,hexagon, manufactured by Allmetal Screw Products Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-899-2685 has 3 manufacturer part numbers on file: 120000-1586 (Invensys Systems, Inc. Dba Schneider Electric), 2-56UNC3B1-8X5-64 (Allmetal Screw Products Corp), TSI1586 (Invensys Systems, Inc. Dba Schneider Electric).
Key specifications for 2-56UNC3B1-8X5-64: Width Across Flats: 0.125 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: 66 FED STD 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.