The Washer,flat, cataloged under National Stock Number 5310-01-644-8542, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mitsubishi Heavy Industries America Inc Div Machine Tool Division. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-644-8542 |
| Primary Part Number | MM500578 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mitsubishi Heavy Industries America Inc Div Machine Tool Division |
| Status | ACTIVE |
| Supplementary Features | NEXT ASSY FUEL INJ PUMP ASSY PART NO 316B65-14090 |
| 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 |
|---|---|
| MM500578 PRIMARY | Mitsubishi Heavy Industries America Inc Div Machine Tool Division (USA) |
NSN 5310-01-644-8542 is a Washer,flat, manufactured by Mitsubishi Heavy Industries America Inc Div Machine Tool Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-644-8542 has 1 manufacturer part number on file: MM500578 (Mitsubishi Heavy Industries America Inc Div Machine Tool Division).
Key specifications for MM500578: Supplementary Features: NEXT ASSY FUEL INJ PUMP ASSY PART NO 316B65-14090; Special Features: CAGE 1TGK4 IS ONLY A DISTRIBUTOR. THE OEM IS IN JAPAN. OEM CAGE IS UNKNOWN AND WAS NOT PROVIDED.; Part Name Assigned by Controlling Agency: WASHER,COPPER PLATE; End Item Identification: NIIN 016179405 COMPRESSOR,DIVE TYPE 1. 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.