The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-704-8046, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-704-8046 |
| Primary Part Number | EE504 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Width Across Flats | 0.332 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Pitch Diameters | +0.1437 TO 0.1475 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Departure From Cited Document | AS MODIFIED BY SURFACE TREATMENT |
| Nut Height | 0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | COPPER ALLOY 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 |
|---|---|
| EE504 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| MILS933TYPEA | 4/1 Identification reference U.S. Government activity |
| EE504 | 5/9 Secondary reference Donallco Inc |
NSN 5310-00-704-8046 is a Nut,plain,hexagon, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-704-8046 has 1 manufacturer part number on file: EE504 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for EE504: Width Across Flats: 0.332 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Pitch Diameters: +0.1437 TO 0.1475 INCHES IN; Thread Direction: RIGHT-HAND. 13 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.