PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

140270O-Ring

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 5331-01-206-6818 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-206-6818 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-206-6818. Primary manufacturer part number: 140270.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-206-6818, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCurtiss-Wright Electro-Mechanical Corporation Div Epd (CAGE 0UBG9); Toolex, Inc Dba Toolex Inc (CAGE 1W383)
Technical Specifications
ParameterValue
NSN5331-01-206-6818
Primary Part Number140270
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5920-00-142-7428ACL70 INTERCHANGEABLE
Fuse,cartridge
Cooper Bussmann, Llc Dba Cooper Industries
4820-01-294-8211SA140270 INTERCHANGEABLE
Diaphragm,valve,flat
Stoughton Trailers Llc
2530-01-391-6387140270 INTERCHANGEABLE
Valve,relay,air Pressure
Heil Trailer International Llc
6670-01-499-1894140270 INTERCHANGEABLE
Load Cell,force-Weight
Intercomp Co
Cross-Reference Index
Part NumberManufacturer
140270 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
140270 Toolex, Inc Dba Toolex Inc (USA)
Related Parts
5920-00-142-7428INTERCHANGEABLE
FUSE,CARTRIDGE
ACL70
4820-01-294-8211INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
SA140270
2530-01-391-6387INTERCHANGEABLE
VALVE,RELAY,AIR PRESSURE
140270
6670-01-499-1894INTERCHANGEABLE
LOAD CELL,FORCE-WEIGHT
140270

Frequently Asked Questions

What is NSN 5331-01-206-6818?

NSN 5331-01-206-6818 is a O-Ring, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-206-6818?

NSN 5331-01-206-6818 has 2 cross-referenced part numbers: 140270 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 140270 (Toolex, Inc Dba Toolex Inc).

What NSN replaces 5331-01-206-6818?

There are 4 known substitutes for 5331-01-206-6818: 5920-00-142-7428, 4820-01-294-8211, 2530-01-391-6387 and 1 more. Verify interchangeability with system specifications before substitution.

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