The Nut, cataloged under National Stock Number 5310-01-239-7030, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Nylok Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Nut |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689); Nylok Llc (CAGE 26233) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-239-7030 |
| Primary Part Number | EK1D420A |
| Item Name | Nut |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Nylok Llc |
| 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 |
|---|---|
| 6503683 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| EK1D420A PRIMARY | Nylok Llc (USA) |
| 607-5564060 ITEM 59 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| EK1D42 .250-20U NC-2B | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| EK1D42.250-UNC-2B | C/1 Advisory reference — outside the item-of-supply concept Nylok Llc |
NSN 5310-01-239-7030 is a Nut, manufactured by Nylok Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-239-7030 has 3 manufacturer part numbers on file: 6503683 (Huntington Ingalls Inc Div Newport News Shipbuilding), EK1D420A (Nylok Llc), 607-5564060 ITEM 59 (Huntington Ingalls Inc Div Newport News Shipbuilding).
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.