PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A218O-Ring

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 5331-00-086-2584 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-086-2584 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-086-2584. Primary manufacturer part number: A218.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.139 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-086-2584, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 2 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-086-2584
Primary Part NumberA218
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Cross-Sectional Height0.139 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-155-7378CM218 INTERCHANGEABLE
Bearing,roller,cylindrical
American Roller Bearing Inc
5331-00-173-8142995242 INTERCHANGEABLE
O-Ring
Xomox Corp Sub of Emerson Electric Co
3455-00-554-732010440 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
3040-00-891-9637A2-18 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
3040-01-029-7564121B646H03 INTERCHANGEABLE
Shaft,straight
Northrop Grumman Support Services Corp
4730-01-084-2763A218 INTERCHANGEABLE
Strainer Element,sediment
Volcanic Heater Inc Dba Volcanic Heater, Inc.
5130-01-112-0612A21-8 INTERCHANGEABLE
Anvil,fastener Installation Tool
Hi-Shear Corporation
4010-01-430-4286 INTERCHANGEABLE
Chain Assembly,single Leg
5940-01-539-3761A218 INTERCHANGEABLE
Terminal,lug
Harger Inc Dba Harger Lightning Protection Inc
5940-01-576-8603A218 INTERCHANGEABLE
Terminal,lug
L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
A218 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division (USA)
A218 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
Related Parts
3110-00-155-7378INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
CM218
5331-00-173-8142INTERCHANGEABLE
O-RING
995242
3455-00-554-7320INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10440
3040-00-891-9637INTERCHANGEABLE
SHAFT,STRAIGHT
A2-18
3040-01-029-7564INTERCHANGEABLE
SHAFT,STRAIGHT
121B646H03
4730-01-084-2763INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
A218
5130-01-112-0612INTERCHANGEABLE
ANVIL,FASTENER INSTALLATION TOOL
A21-8
4010-01-430-4286INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
5940-01-539-3761INTERCHANGEABLE
TERMINAL,LUG
A218
5940-01-576-8603INTERCHANGEABLE
TERMINAL,LUG
A218
5340-01-616-2403INTERCHANGEABLE
BRACKET,MOUNTING
A-281

Frequently Asked Questions

What is NSN 5331-00-086-2584?

NSN 5331-00-086-2584 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-086-2584?

NSN 5331-00-086-2584 has 2 cross-referenced part numbers: A218 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division), A218 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

What NSN replaces 5331-00-086-2584?

There are 11 known substitutes for 5331-00-086-2584: 3110-00-155-7378, 5331-00-173-8142, 3455-00-554-7320 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A218?

Key specifications for A218: Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 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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