The Washer,flat, cataloged under National Stock Number 5310-01-264-9148, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-264-9148 |
| Primary Part Number | 2051G69-001 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Overall Diameter | 6.500 INCHES NOMINAL IN |
| Material Document and Classification | B4A2A,CAGEC 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 4.501 INCHES MINIMUM AND 4.506 INCHES MAXIMUM IN |
| Thickness | 1.620 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 |
|---|---|
| 2051G69-001 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 2051G69-001 | 5/9 Secondary reference General Electric Company |
NSN 5310-01-264-9148 is a Washer,flat, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-264-9148 has 1 manufacturer part number on file: 2051G69-001 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for 2051G69-001: Overall Diameter: 6.500 INCHES NOMINAL IN; Material Document and Classification: B4A2A,CAGEC 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.