The Washer,flat, cataloged under National Stock Number 5310-01-228-7651, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Oshkosh Defense Llc (CAGE 75Q65); Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division (CAGE 55746) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-228-7651 |
| Primary Part Number | 1047 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division |
| 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 |
|---|---|
| 2CX344 | Oshkosh Defense Llc (USA) |
| 1047 PRIMARY | Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division (USA) |
| Reference | Meaning |
|---|---|
| 1047 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| 2CX344 | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-01-228-7651 is a Washer,flat, manufactured by Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-228-7651 has 2 manufacturer part numbers on file: 2CX344 (Oshkosh Defense Llc), 1047 (Parker-Hannifin Corporation Dba Nichols Portland Division Div Nichols Portland Division).
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.