The Washer,flat, cataloged under National Stock Number 5310-01-128-4120, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-128-4120 |
| Primary Part Number | 9853M81P28 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Overall Diameter | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Thickness | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM 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 |
|---|---|
| 9853M81P28 | Berkshire Manufactured Products, Inc. Dba Pursuit Aerospace (USA) |
| 9853M81P28 | Specialty Washer Co of South Carolina Inc (USA) |
| 9853M81P28 PRIMARY | General Electric Company (USA) |
| 9853M81P28 | Whitcraft Llc Dba Pursuit Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 9853M81P28 | 5/9 Secondary reference Alco Machine Co Inc |
| 10109482 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-128-4120 is a Washer,flat, manufactured by General Electric Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-128-4120 has 4 manufacturer part numbers on file: 9853M81P28 (Berkshire Manufactured Products, Inc. Dba Pursuit Aerospace), 9853M81P28 (Specialty Washer Co of South Carolina Inc), 9853M81P28 (General Electric Company), 9853M81P28 (Whitcraft Llc Dba Pursuit Aerospace).
Key specifications for 9853M81P28: Overall Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL 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.