The Washer,flat, cataloged under National Stock Number 5310-01-378-8714, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-378-8714 |
| Primary Part Number | P10-2784 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.880 INCHES NOMINAL IN |
| Hardness Rating | 37.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1085 OR STEEL COMP 1090 OR STEEL COMP 1095 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Thickness | 0.109 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 |
|---|---|
| P10-2784 PRIMARY | Donaldson Company, Inc. (USA) |
| 11671216-7 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-378-8714 is a Washer,flat, manufactured by Donaldson Company, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-378-8714 has 2 manufacturer part numbers on file: P10-2784 (Donaldson Company, Inc.), 11671216-7 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for P10-2784: Overall Diameter: 0.880 INCHES NOMINAL IN; Hardness Rating: 37.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ZINC OVERALL. 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.