The Washer,flat, cataloged under National Stock Number 5310-00-033-7112, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-033-7112 |
| Primary Part Number | 3-66391 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Width Across Flats | 0.600 INCHES NOMINAL IN |
| Thickness | 0.064 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ANODIZE OVERALL |
| Center Hole Shape Style | ROUND |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | QQ-A-287 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Peripheral Shape Style | ROUND W/FLATS |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-00-033-7112 is a Washer,flat, manufactured by The Boeing Company Div Defense, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-033-7112 has 2 cross-referenced part numbers: 3-66391 (The Boeing Company Div Defense), 00520 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
There are 5 known substitutes for 5310-00-033-7112: 5331-00-248-3848, 4730-00-278-5757, 4730-00-707-3068 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3-66391: Width Across Flats: 0.600 INCHES NOMINAL IN; Thickness: 0.064 INCHES NOMINAL IN; Material: ALUMINUM ALLOY OVERALL; Overall Diameter: 1.000 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.