The Washer,flat, cataloged under National Stock Number 5310-01-446-9583, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-446-9583 |
| Primary Part Number | M4070009 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Overall Diameter | 0.620 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Thickness | 0.094 INCHES NOMINAL IN |
| 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 |
|---|---|
| M4070009 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 9601565 | 5/9 Secondary reference Meritor Heavy Vehicle Systems Llc |
| 9601568 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| 9601568 | 5/9 Secondary reference Meritor Heavy Vehicle Systems Llc |
NSN 5310-01-446-9583 is a Washer,flat, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-446-9583 has 1 manufacturer part number on file: M4070009 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for M4070009: Overall Diameter: 0.620 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Thickness: 0.094 INCHES NOMINAL IN. 4 specifications are 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.