The Washer,flat, cataloged under National Stock Number 5310-00-283-0733, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is David Brown Hydraulics Inc Dba Hydreco. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-283-0733 |
| Primary Part Number | 712X113 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | David Brown Hydraulics Inc Dba Hydreco |
| Status | ACTIVE |
| Overall Diameter | 2.250 INCHES NOMINAL IN |
| Hardness Rating | 70.0 DUROMETER NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.125 INCHES NOMINAL IN |
| Thickness | 0.062 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 |
|---|---|
| 712X113 PRIMARY | David Brown Hydraulics Inc Dba Hydreco (USA) |
| Reference | Meaning |
|---|---|
| 8395442 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 14064P11 | 5/9 Secondary reference Taylor Machine Works Inc |
NSN 5310-00-283-0733 is a Washer,flat, manufactured by David Brown Hydraulics Inc Dba Hydreco, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-283-0733 has 1 manufacturer part number on file: 712X113 (David Brown Hydraulics Inc Dba Hydreco).
Key specifications for 712X113: Overall Diameter: 2.250 INCHES NOMINAL IN; Hardness Rating: 70.0 DUROMETER NOMINAL; 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.