The Washer,flat, cataloged under National Stock Number 5310-01-100-0630, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hatz Diesel of America Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-100-0630 |
| Primary Part Number | 03228800 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hatz Diesel of America Inc |
| Status | ACTIVE |
| Overall Diameter | 18.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 13.0 MILLIMETERS NOMINAL MM |
| Thickness | 1.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 03228800 PRIMARY | Hatz Diesel of America Inc (USA) |
| Reference | Meaning |
|---|---|
| C3228800 | 5/9 Secondary reference Hatz Diesel of America Inc |
| 032 288 00 | C/1 Advisory reference — outside the item-of-supply concept Partz Network Llc, John J. Melton, Robert Melton, Christpher Robles, Richard Melton, Christine Hunsecker |
| 82298 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 5310-01-100-0630 is a Washer,flat, manufactured by Hatz Diesel of America Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-100-0630 has 1 manufacturer part number on file: 03228800 (Hatz Diesel of America Inc).
Key specifications for 03228800: Overall Diameter: 18.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: COPPER OVERALL. 7 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.