The Washer,flat, cataloged under National Stock Number 5310-01-023-7626, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-023-7626 |
| Primary Part Number | 253665 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Overall Diameter | 2.218 INCHES NOMINAL IN |
| Hardness Rating | 87.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 89.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Material Document and Classification | VS-2-1-7-1,62983 MFR REF SINGLE MATERIAL RESPONSE OR VS-2-1-7-3,62983 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 | 1.625 INCHES NOMINAL IN |
| Thickness | 0.125 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 |
|---|---|
| 253665 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 5310-01-023-7626 is a Washer,flat, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-023-7626 has 1 manufacturer part number on file: 253665 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 253665: Overall Diameter: 2.218 INCHES NOMINAL IN; Hardness Rating: 87.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 89.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Material Document and Classification: VS-2-1-7-1,62983 MFR REF SINGLE MATERIAL RESPONSE OR VS-2-1-7-3,62983 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 9 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.