The Washer,flat, cataloged under National Stock Number 5310-01-266-4641, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Department of Defense Project Manager-Mobile Electric Power. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-266-4641 |
| Primary Part Number | 88-20564-6 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| Material | STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Center Hole Shape Style | ROUND |
| Material Document and Classification | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Surface Treatment Document and Classification | ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Hole Diameter | 0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | A CLASS AND A TYPE AND 1 GRADE |
| Overall Diameter | 1.055 INCHES MINIMUM AND 1.092 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Cross-Sectional Shape Style | RECTANGULAR |
| Thickness | 0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 88-20564-6 | Department of Defense Project Manager-Mobile Electric Power (USA) |
| FF-W-92 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 6640211 FIND 32 | Naval Sea Systems Command (USA) |
| 88-20564 | Department of Defense Project Manager-Mobile Electric Power (USA) |
| 88-20033 | Department of Defense Project Manager-Mobile Electric Power (USA) |
| MS51412-9 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 88-20033-41A | Department of Defense Project Manager-Mobile Electric Power (USA) |
NSN 5310-01-266-4641 is a Washer,flat, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-266-4641 has 7 cross-referenced part numbers: 88-20564-6 (Department of Defense Project Manager-Mobile Electric Power), FF-W-92 (Federal Specifications Promulgated by General Services Administration Washington DC), 6640211 FIND 32 (Naval Sea Systems Command), 88-20564 (Department of Defense Project Manager-Mobile Electric Power), 88-20033 (Department of Defense Project Manager-Mobile Electric Power) and 2 more.
There are 12 known substitutes for 5310-01-266-4641: 5310-00-044-6477, 5310-00-809-4058, 5310-01-103-6042 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 88-20564-6: Material: STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Center Hole Shape Style: ROUND; Material Document and Classification: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.