PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

220278Washer,flat

Turbo Power & Marine System Inc Sub of United Technologies Corp · NSN 5310-00-596-8807 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-596-8807 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-596-8807. Primary manufacturer part number: 220278.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL COMP 302 OVERALL
  • Material Document and Classification: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.203 INCHES NOMINAL IN
  • Overall Diameter: 0.375 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-596-8807, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Turbo Power & Marine System Inc Sub of United Technologies Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-596-8807
Primary Part Number220278
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTurbo Power & Marine System Inc Sub of United Technologies Corp
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL COMP 302 OVERALL
Material Document and ClassificationAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.203 INCHES NOMINAL IN
Overall Diameter0.375 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Thickness0.043 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3110-00-100-07221985 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5310-01-008-4232218668 INTERCHANGEABLE
Washer,flat
Woodward, Inc. Div Fuel Systems and Controls
Cross-Reference Index
Part NumberManufacturer
220278 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
220278 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
218668 Zf Industrieantriebe Witten Gmbh (DEU)
220278 Atomic Energy Commission Oak Ridge Opns Office (USA)
Related Parts
3110-00-100-0722INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
1985
5310-01-008-4232INTERCHANGEABLE
WASHER,FLAT
218668

Frequently Asked Questions

What is NSN 5310-00-596-8807?

NSN 5310-00-596-8807 is a Washer,flat, manufactured by Turbo Power & Marine System Inc Sub of United Technologies Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-596-8807?

NSN 5310-00-596-8807 has 4 cross-referenced part numbers: 220278 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 220278 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 218668 (Zf Industrieantriebe Witten Gmbh), 220278 (Atomic Energy Commission Oak Ridge Opns Office).

What NSN replaces 5310-00-596-8807?

There are 2 known substitutes for 5310-00-596-8807: 3110-00-100-0722, 5310-01-008-4232. Verify interchangeability with system specifications before substitution.

What are the specifications of 220278?

Key specifications for 220278: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL COMP 302 OVERALL; Material Document and Classification: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 0.203 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-596-8807 still in active supply?

NSN 5310-00-596-8807 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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