The Washer,flat, cataloged under National Stock Number 5310-01-217-1093, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-217-1093 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 4.220 INCHES MINIMUM AND 4.280 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-B-5687, SINTERED BRONZE, TYPE I, COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 2.375 INCHES NOMINAL IN |
| Thickness | 0.120 INCHES MINIMUM AND 0.125 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 |
| Reference | Meaning |
|---|---|
| 8224863-01 | 5/9 Secondary reference U.S. Government activity |
| 8224863-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-217-1093 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-217-1093: Overall Diameter: 4.220 INCHES MINIMUM AND 4.280 INCHES MAXIMUM IN; Material Document and Classification: MIL-B-5687, SINTERED BRONZE, TYPE I, COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: WASHER,FLAT; BRONZE,SINTERED; 4.250 IN. NOM O/A DIA,2.375 IN. NOM CENTER HOLE DIA,0.120 MIN,0.125 IN. MAX CROSS-SECT THK IN. 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.