The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-183-0553, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-183-0553 |
| Primary Part Number | BHM00590-080 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Washer Outside Diameter | 12.73 MILLIMETERS MAXIMUM MM |
| Width Across Flats | 10.0 MILLIMETERS MAXIMUM MM |
| Thread Tolerance Class | 4H6H EXTERNAL |
| Thread Series | MJ |
| Thread Pitch in Millimeters | 1.00 |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Washer Thickness | 1.49 MILLIMETERS MAXIMUM MM |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 8.0 MILLIMETERS MM |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| HS7045M810 | The Boeing Company (USA) |
| BHM00590-080 PRIMARY | Bristol Industries, Llc (USA) |
| 75594M810 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| OSS7045M810 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| HS7045M810 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| OSS7045M810 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
NSN 5310-01-183-0553 is a Nut,plain,extended Washer,hexago, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-183-0553 has 3 manufacturer part numbers on file: HS7045M810 (The Boeing Company), BHM00590-080 (Bristol Industries, Llc), 75594M810 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for BHM00590-080: Overall Height: 6.35 MILLIMETERS MAXIMUM MM; Washer Outside Diameter: 12.73 MILLIMETERS MAXIMUM MM; Width Across Flats: 10.0 MILLIMETERS MAXIMUM MM; Thread Tolerance Class: 4H6H EXTERNAL. 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.