The Washer,flat, cataloged under National Stock Number 5310-01-340-1173, 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. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-340-1173 |
| Primary Part Number | 211038398 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 1.125 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.656 INCHES NOMINAL IN |
| Thickness | 0.188 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 |
|---|---|
| 211038398 PRIMARY | Naval Sea Systems Command (USA) |
| 211092043 PRIMARY | Naval Sea Systems Command (USA) |
| 801-6405343 FIND 15 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF330709 FIND 15 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5310-01-340-1173 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-340-1173 has 3 manufacturer part numbers on file: 211038398 (Naval Sea Systems Command), 211092043 (Naval Sea Systems Command), 801-6405343 FIND 15 (Naval Sea Systems Command).
Key specifications for 211038398: Overall Diameter: 1.125 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: PLASTIC 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.