The Washer,flat, cataloged under National Stock Number 5310-00-153-6320, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corp Dba Eaton Aerospace Jackson. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-153-6320 |
| Primary Part Number | TB122312-4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Corp Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| Overall Diameter | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4507 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 260 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.317 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Thickness | 0.0135 INCHES MINIMUM AND 0.0165 INCHES MAXIMUM 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 |
|---|---|
| TB122312-4 PRIMARY | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
NSN 5310-00-153-6320 is a Washer,flat, manufactured by Eaton Corp Dba Eaton Aerospace Jackson, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-153-6320 has 1 manufacturer part number on file: TB122312-4 (Eaton Corp Dba Eaton Aerospace Jackson).
Key specifications for TB122312-4: Overall Diameter: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Material Document and Classification: AMS 4507 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; 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.