The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-509-4850, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Martco Paper and Ribbons Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-509-4850 |
| Primary Part Number | H73918-02-6-7 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Martco Paper and Ribbons Inc |
| Status | ACTIVE |
| Material | COPPER ALLOY 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 |
|---|---|
| H73918-02-6-7 PRIMARY | Martco Paper and Ribbons Inc (USA) |
| Reference | Meaning |
|---|---|
| US73918-02 H73918-02-6-7 | C/1 Advisory reference — outside the item-of-supply concept Defense Maritime Solutions, Inc. |
| US73918-02 H73918-02-6-7 | 5/9 Secondary reference Wartsila Lips Inc |
NSN 5310-01-509-4850 is a Nut,plain,hexagon, manufactured by Martco Paper and Ribbons Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-509-4850 has 1 manufacturer part number on file: H73918-02-6-7 (Martco Paper and Ribbons Inc).
Key specifications for H73918-02-6-7: Special Features: ASTM B150 CU ALLOY UNS C630000; End Item Identification: SEAL, STERN T; Material: COPPER ALLOY OVERALL. 1 specification is 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.