The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-509-1537, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Klein Marine Systems Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Subconn, Inc. (CAGE 1MKX3); Klein Marine Systems Inc (CAGE 52315) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-509-1537 |
| Primary Part Number | 12500824 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Klein Marine Systems Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| BNN 7/16 NUT WASHER | Subconn, Inc. (USA) |
| 12500824 PRIMARY | Klein Marine Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| BNN 7/16 NUT/WA SHER | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-509-1537 is a Nut,plain,extended Washer,hexago, manufactured by Klein Marine Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-509-1537 has 2 manufacturer part numbers on file: BNN 7/16 NUT WASHER (Subconn, Inc.), 12500824 (Klein Marine Systems Inc).
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.