PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

88-20033-33BWasher,flat

Department of Defense Project Manager-Mobile Electric Power · NSN 5310-01-478-6342 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-478-6342 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-478-6342. Primary manufacturer part number: 88-20033-33B.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER ALLOY 260 OVERALL
  • Material Document and Classification: ASTM B 36,UNS C26000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.406 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Thickness: 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 260 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-478-6342, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-478-6342
Primary Part Number88-20033-33B
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDepartment of Defense Project Manager-Mobile Electric Power
StatusACTIVE
MaterialCOPPER ALLOY 260 OVERALL
Material Document and ClassificationASTM B 36,UNS C26000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.406 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Thickness0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-044-6477 INTERCHANGEABLE
Washer,flat
5310-01-103-6042 INTERCHANGEABLE
Washer,flat
5310-01-266-4641 INTERCHANGEABLE
Washer,flat
5310-01-471-063388-20033-20C INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-471-064088-20033-11C INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-471-244688-20033-24B INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-471-245188-20033-6C INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-478-634088-20033-33C INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-478-634188-20033-11B INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
5310-01-478-634488-20033-5C INTERCHANGEABLE
Washer,flat
Department of Defense Project Manager-Mobile Electric Power
Cross-Reference Index
Part NumberManufacturer
88-20033 Department of Defense Project Manager-Mobile Electric Power (USA)
88-20033-33B PRIMARY Department of Defense Project Manager-Mobile Electric Power (USA)
Related Parts
5310-00-044-6477INTERCHANGEABLE
WASHER,FLAT
5310-01-103-6042INTERCHANGEABLE
WASHER,FLAT
5310-01-266-4641INTERCHANGEABLE
WASHER,FLAT
5310-01-471-0633INTERCHANGEABLE
WASHER,FLAT
88-20033-20C
5310-01-471-0640INTERCHANGEABLE
WASHER,FLAT
88-20033-11C
5310-01-471-2446INTERCHANGEABLE
WASHER,FLAT
88-20033-24B
5310-01-471-2451INTERCHANGEABLE
WASHER,FLAT
88-20033-6C
5310-01-478-6340INTERCHANGEABLE
WASHER,FLAT
88-20033-33C
5310-01-478-6341INTERCHANGEABLE
WASHER,FLAT
88-20033-11B
5310-01-478-6344INTERCHANGEABLE
WASHER,FLAT
88-20033-5C
5310-01-478-6346INTERCHANGEABLE
WASHER,FLAT
88-20033-19C
5310-01-531-6085INTERCHANGEABLE
WASHER,FLAT
88-20033-10A

Frequently Asked Questions

What is NSN 5310-01-478-6342?

NSN 5310-01-478-6342 is a Washer,flat, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-478-6342?

NSN 5310-01-478-6342 has 2 cross-referenced part numbers: 88-20033 (Department of Defense Project Manager-Mobile Electric Power), 88-20033-33B (Department of Defense Project Manager-Mobile Electric Power).

What NSN replaces 5310-01-478-6342?

There are 12 known substitutes for 5310-01-478-6342: 5310-00-044-6477, 5310-01-103-6042, 5310-01-266-4641 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 88-20033-33B?

Key specifications for 88-20033-33B: End Item Identification: 6115-01-431-3063;GENERATOR SET,DIESEL ENGINE; Material: COPPER ALLOY 260 OVERALL; Material Document and Classification: ASTM B 36,UNS C26000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 0.406 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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