The Washer,flat, cataloged under National Stock Number 5310-01-685-6841, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Metric and Multistandard Components Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Metric Bolt & Nut Co, Inc. of South Carolina Dba Metric Bolt & Nut Co. Inc. (CAGE 6K580); Metric and Multistandard Components Corp (CAGE 15526) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-685-6841 |
| Primary Part Number | DIN125A4M8 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Metric and Multistandard Components Corp |
| 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 |
|---|---|
| DIN125A4M8 | Metric Bolt & Nut Co, Inc. of South Carolina Dba Metric Bolt & Nut Co. Inc. (USA) |
| DIN125A4M8 PRIMARY | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| 43183 | D/9 Drawing number reference only United States Department of the Navy Dba Naval Surface Warfare Center Panama City |
| 43183 FIND NO 10 | C/1 Advisory reference — outside the item-of-supply concept United States Department of the Navy Dba Naval Surface Warfare Center Panama City |
NSN 5310-01-685-6841 is a Washer,flat, manufactured by Metric and Multistandard Components Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-685-6841 has 2 manufacturer part numbers on file: DIN125A4M8 (Metric Bolt & Nut Co, Inc. of South Carolina Dba Metric Bolt & Nut Co. Inc.), DIN125A4M8 (Metric and Multistandard Components Corp).
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.