PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E3213-2PC3155Washer,flat

King Engineering Corporation Dba King-Gage Systems · NSN 5310-00-264-0621 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-264-0621 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-264-0621. Primary manufacturer part number: E3213-2PC3155.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Material: COPPER ALLOY 11 OVERALL
  • Nondefinitive Spec/std Data: A TYPE AND 2 GRADE AND E CLASS
  • Hole Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
  • Departure From Cited Designator: AS MODIFIED BY THK
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Thickness: 0.03125 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 11 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-264-0621, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is King Engineering Corporation Dba King-Gage Systems. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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.

Technical Specifications
ParameterValue
NSN5310-00-264-0621
Primary Part NumberE3213-2PC3155
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKing Engineering Corporation Dba King-Gage Systems
StatusACTIVE
Peripheral Shape StyleROUND
MaterialCOPPER ALLOY 11 OVERALL
Nondefinitive Spec/std DataA TYPE AND 2 GRADE AND E CLASS
Hole Diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
Departure From Cited DesignatorAS MODIFIED BY THK
Overall Diameter0.500 INCHES NOMINAL IN
Thickness0.03125 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-167-07021-4X7-8X364 INTERCHANGEABLE
Washer,flat
Stewart Avionics Inc
5310-00-199-4587 INTERCHANGEABLE
Washer,flat
5310-00-205-9345 INTERCHANGEABLE
Washer,flat
5310-00-205-9928 INTERCHANGEABLE
Washer,flat
5310-00-205-9931 INTERCHANGEABLE
Washer,flat
3940-00-242-40163155 INTERCHANGEABLE
Adapter,hoisting
General Electric Company
5310-00-253-3207MS15795-442 INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3455-00-254-846313540 INTERCHANGEABLE
Cutter,milling,convex
Niagara Cutter Inc
5310-00-274-7840 INTERCHANGEABLE
Washer,flat
5310-00-377-0251111822 INTERCHANGEABLE
Washer,flat
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
E3213-2PC3155 PRIMARY King Engineering Corporation Dba King-Gage Systems (USA)
FFW92TYPEAGRADE2CLASSE Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3155 Iso Group Inc Dba Iso Group Inc (USA)
3155 Bokers Inc (USA)
E3096PC3155 PRIMARY King Engineering Corporation Dba King-Gage Systems (USA)
3155 PRIMARY King Engineering Corporation Dba King-Gage Systems (USA)
Related Parts
5310-00-167-0702INTERCHANGEABLE
WASHER,FLAT
1-4X7-8X364
5310-00-199-4587INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9345INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9928INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9931INTERCHANGEABLE
WASHER,FLAT
3940-00-242-4016INTERCHANGEABLE
ADAPTER,HOISTING
3155
5310-00-253-3207INTERCHANGEABLE
WASHER,FLAT
MS15795-442
3455-00-254-8463INTERCHANGEABLE
CUTTER,MILLING,CONVEX
13540
5310-00-274-7840INTERCHANGEABLE
WASHER,FLAT
5310-00-377-0251INTERCHANGEABLE
WASHER,FLAT
111822
5330-00-512-5988INTERCHANGEABLE
GASKET
31-55
5310-00-582-5598INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-00-264-0621?

NSN 5310-00-264-0621 is a Washer,flat, manufactured by King Engineering Corporation Dba King-Gage Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-264-0621?

NSN 5310-00-264-0621 has 6 cross-referenced part numbers: E3213-2PC3155 (King Engineering Corporation Dba King-Gage Systems), FFW92TYPEAGRADE2CLASSE (Federal Specifications Promulgated by General Services Administration Washington DC), 3155 (Iso Group Inc Dba Iso Group Inc), 3155 (Bokers Inc), E3096PC3155 (King Engineering Corporation Dba King-Gage Systems) and 1 more.

What NSN replaces 5310-00-264-0621?

There are 12 known substitutes for 5310-00-264-0621: 5310-00-167-0702, 5310-00-199-4587, 5310-00-205-9345 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E3213-2PC3155?

Key specifications for E3213-2PC3155: Peripheral Shape Style: ROUND; Material: COPPER ALLOY 11 OVERALL; Nondefinitive Spec/std Data: A TYPE AND 2 GRADE AND E CLASS; Hole Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN. 10 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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