The Washer,flat, cataloged under National Stock Number 5310-01-294-8594, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command Logistics Support Engineering Activity. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-294-8594 |
| Primary Part Number | 9240-004-46 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command Logistics Support Engineering Activity |
| Status | ACTIVE |
| Overall Diameter | 2.438 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-750,COMPOSITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 510 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.265 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN |
| Thickness | 0.032 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 |
|---|---|
| 26800345 | Optex Systems, Inc Div Applied Optics Center (USA) |
| 9240-004-46 PRIMARY | Naval Sea Systems Command Logistics Support Engineering Activity (USA) |
| Reference | Meaning |
|---|---|
| 26800345 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division |
NSN 5310-01-294-8594 is a Washer,flat, manufactured by Naval Sea Systems Command Logistics Support Engineering Activity, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-294-8594 has 2 manufacturer part numbers on file: 26800345 (Optex Systems, Inc Div Applied Optics Center), 9240-004-46 (Naval Sea Systems Command Logistics Support Engineering Activity).
Key specifications for 9240-004-46: Overall Diameter: 2.438 INCHES NOMINAL IN; Material Document and Classification: QQ-B-750,COMPOSITION A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: TWO HOLES DRILLED ON EITHER SIDE OF WASHER,HOLE DIAMETERS .067 TO .069 DRILLED THROUGH; CENTER TO CENTER DISTANCE 2.216 TO 2.220. 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.