The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-239-8590, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Babcock & Wilcox Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Babcock & Wilcox Co (CAGE 05073) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-239-8590 |
| Primary Part Number | MX-261193-3 PIECE 33 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| MX-261193-3 PIECE 33 PRIMARY | Babcock & Wilcox Co (USA) |
| 7001939 | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| MX-242266-3 PIECE 33 | C/1 Advisory reference — outside the item-of-supply concept The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 7001939 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| MX-261193-3 PIECE 33 | 3/9 Design control — primary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| MX242266-33 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-239-8590 is a Nut,plain,hexagon, manufactured by Babcock & Wilcox Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-239-8590 has 2 manufacturer part numbers on file: MX-261193-3 PIECE 33 (Babcock & Wilcox Co), 7001939 (Babcock & Wilcox Co).
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.