The Washer,flat, cataloged under National Stock Number 5310-00-883-9409, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rotair Aerospace Corp. Government technical data includes 11 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 | 5310-00-883-9409 |
| Primary Part Number | S6110-34204-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rotair Aerospace Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.937 INCHES NOMINAL IN |
| Heat Treatment | T-3 SOLUTION HEAT TREATED, COLD WORKED |
| Material Document and Classification | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ANODIZE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.265 INCHES NOMINAL IN |
| Thickness | 0.016 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 |
|---|---|
| S6110-34204-1 PRIMARY | Rotair Aerospace Corp (USA) |
| S6110-34204-1 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-00-883-9409 is a Washer,flat, manufactured by Rotair Aerospace Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-883-9409 has 2 manufacturer part numbers on file: S6110-34204-1 (Rotair Aerospace Corp), S6110-34204-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6110-34204-1: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.937 INCHES NOMINAL IN; Heat Treatment: T-3 SOLUTION HEAT TREATED, COLD WORKED; Material Document and Classification: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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.