The Washer,convex, cataloged under National Stock Number 5310-01-374-5840, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Washer,convex |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (CAGE 0VP52); Isotta Fraschini Motori Spa (CAGE A0106) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-374-5840 |
| Primary Part Number | 75251F01 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am |
| 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 |
|---|---|
| 75251F01 PRIMARY | Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am (USA) |
| 75251F01 | Isotta Fraschini Motori Spa (ITA) |
| Reference | Meaning |
|---|---|
| 75251F01 | 5/9 Secondary reference Grandi Motori Fincantieri /fggm/ Div |
| 75251F01 | C/1 Advisory reference — outside the item-of-supply concept Wheeler Fleet Solutions, Co. |
NSN 5310-01-374-5840 is a Washer,convex, manufactured by Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-374-5840 has 2 manufacturer part numbers on file: 75251F01 (Fincantieri Marine Systems North America, Inc. Dba Fincantieri Marine Systems North Am), 75251F01 (Isotta Fraschini Motori Spa).
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.