The Washer,flat, cataloged under National Stock Number 5310-01-396-5840, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-396-5840 |
| Primary Part Number | 88-20564-4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| Overall Diameter | 0.993 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Hole Diameter | 0.433 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Thickness | 0.064 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Center Hole Shape Style | ROUND |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 88-20564-4 | Department of Defense Project Manager-Mobile Electric Power (USA) |
| MS21306-1G | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS21306-1G | Eurotradia International (FRA) |
| 88-20564 | Department of Defense Project Manager-Mobile Electric Power (USA) |
NSN 5310-01-396-5840 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 5310-01-396-5840 has 4 cross-referenced part numbers: 88-20564-4 (Department of Defense Project Manager-Mobile Electric Power), MS21306-1G (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS21306-1G (Eurotradia International), 88-20564 (Department of Defense Project Manager-Mobile Electric Power).
There are 10 known substitutes for 5310-01-396-5840: 5310-00-044-6477, 5310-00-809-4058, 5310-01-234-9415 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 88-20564-4: Overall Diameter: 0.993 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN; Surface Treatment: ZINC OVERALL; Hole Diameter: 0.433 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.