The Washer,flat, cataloged under National Stock Number 5310-01-026-1130, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-026-1130 |
| Primary Part Number | 1003285-3 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| Status | ACTIVE |
| Width Across Flats | 2.000 INCHES NOMINAL IN |
| Length | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| Heat Treatment | HOT ROLLED AND ANNEALED |
| Supplementary Features | TO BE BENT AT INSTALLATION |
| Material Document and Classification | ASTM A505 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | RECTANGULAR |
| Material | STEEL COMP 4130 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN |
| Thickness | 0.029 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 |
|---|---|
| 1003285-3 PRIMARY | Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division (USA) |
| Reference | Meaning |
|---|---|
| 740-6-00112 PIECE 5 | 5/1 Secondary reference Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| CJ67290PC 5 | C/1 Advisory reference — outside the item-of-supply concept Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
NSN 5310-01-026-1130 is a Washer,flat, manufactured by Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-026-1130 has 1 manufacturer part number on file: 1003285-3 (Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division).
Key specifications for 1003285-3: Width Across Flats: 2.000 INCHES NOMINAL IN; Length: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN; Heat Treatment: HOT ROLLED AND ANNEALED; Supplementary Features: TO BE BENT AT INSTALLATION. 11 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.