The Washer,flat, cataloged under National Stock Number 5310-01-296-7828, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 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 | 5310-01-296-7828 |
| Primary Part Number | 5266115 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Left Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Overall Diameter | 1.750 INCHES NOMINAL IN |
| Inside Right Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AISI-SAE01,DRILL ROD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Inside Left Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Outside Right Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.003 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Thickness | 0.187 INCHES MINIMUM AND 0.189 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 |
|---|---|
| 5266115 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-296-7828 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-296-7828 has 1 manufacturer part number on file: 5266115 (Naval Sea Systems Command).
Key specifications for 5266115: Outside Left Corner Chamfer Angle: 45.0 DEGREES NOMINAL; Overall Diameter: 1.750 INCHES NOMINAL IN; Inside Right Corner Chamfer Angle: 45.0 DEGREES NOMINAL; Hardness Rating: 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM. 13 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.