PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90010-2Washer,flat

United Technologies Corp Hamilton Sundstrand Corp · NSN 5310-01-228-9521 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-228-9521 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-228-9521. Primary manufacturer part number: 90010-2.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Thickness: 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: PLASTIC POLYAMIDE NYLON OR PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
  • Material Document and Classification: ASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 1ST MATERIAL RESPONSE OR AMS 3617 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon or Plastic Polyhexamethylene Amide Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-228-9521, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is United Technologies Corp Hamilton Sundstrand Corp. Government technical data includes 8 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-228-9521
Primary Part Number90010-2
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUnited Technologies Corp Hamilton Sundstrand Corp
StatusACTIVE
Center Hole Shape StyleROUND
Thickness0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Hole Diameter0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
MaterialPLASTIC POLYAMIDE NYLON OR PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
Material Document and ClassificationASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OR L-P-410 FED SPEC 1ST MATERIAL RESPONSE OR AMS 3617 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5945-00-365-6259271-7250P001 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon Co
5995-01-154-281590-010-2 INTERCHANGEABLE
Cable Assembly
Teledyne Defense Electronics, Llc Dba Teledyne Storm Microwave Div Teledyne Storm Microwave
4820-01-277-7586 INTERCHANGEABLE
Parts Kit,valve
3110-01-510-90236309-RS1/C3 INTERCHANGEABLE
Roller,bearing
Skf Usa Inc.
5985-01-510-9302900,102 INTERCHANGEABLE
Tripod,antenna
International Met Systems Inc Dba Intermet Systems
5305-01-594-8540900102 INTERCHANGEABLE
Screw,cap,hexagon Head
Rexnord Industries Llc
Cross-Reference Index
Part NumberManufacturer
90010-2 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
90010-2 PRIMARY United Technologies Corp Hamilton Sundstrand Corp (USA)
Related Parts
5945-00-365-6259INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
271-7250P001
5995-01-154-2815INTERCHANGEABLE
CABLE ASSEMBLY
90-010-2
4820-01-277-7586INTERCHANGEABLE
PARTS KIT,VALVE
3110-01-510-9023INTERCHANGEABLE
ROLLER,BEARING
6309-RS1/C3
5985-01-510-9302INTERCHANGEABLE
TRIPOD,ANTENNA
900,102
5305-01-594-8540INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
900102

Frequently Asked Questions

What is NSN 5310-01-228-9521?

NSN 5310-01-228-9521 is a Washer,flat, manufactured by United Technologies Corp Hamilton Sundstrand Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-228-9521?

NSN 5310-01-228-9521 has 2 cross-referenced part numbers: 90010-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 90010-2 (United Technologies Corp Hamilton Sundstrand Corp).

What NSN replaces 5310-01-228-9521?

There are 6 known substitutes for 5310-01-228-9521: 5945-00-365-6259, 5995-01-154-2815, 4820-01-277-7586 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90010-2?

Key specifications for 90010-2: Center Hole Shape Style: ROUND; Thickness: 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Hole Diameter: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN. 8 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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