PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5-056 C0873-70O-Ring

Parker-Hannifin Corp Div O-Ring Division · NSN 5331-00-323-2817 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-323-2817 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-323-2817. Primary manufacturer part number: 5-056 C0873-70.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Outside Diameter: 0.366 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.035 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
  • Temp Rating: -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
  • 5 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-323-2817, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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
NSN5331-00-323-2817
Primary Part Number5-056 C0873-70
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corp Div O-Ring Division
StatusACTIVE
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Outside Diameter0.366 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR
Center Hole Diameter0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
Cross-Sectional Height0.035 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Temp Rating-35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-223-2703 INTERCHANGEABLE
Chain,roller
3110-00-227-2802MS24461-6 INTERCHANGEABLE
Bearing,roller,needle
Sae International Dba Sae International
6810-00-262-8573 INTERCHANGEABLE
Ferrous Sulfate,heptahydrate
6810-00-262-8574 INTERCHANGEABLE
Calcium Fluoride
6810-00-264-6534 INTERCHANGEABLE
Ferrous Sulfate,heptahydrate
4730-00-287-1032AS5195B0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
9905-00-347-783650-56 INTERCHANGEABLE
Plate,instruction
Goodrich Corporation
6150-00-524-45735056 INTERCHANGEABLE
Wiring Harness
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
4730-00-677-2547505-6 INTERCHANGEABLE
Elbow,tube
Lenz Inc Dba the Lenz Company
5961-00-913-2121 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
5-056C147-70 Parker-Hannifin Corp Div O-Ring Division (USA)
5-056 Zf Industrieantriebe Witten Gmbh (DEU)
5-056C873-70 Parker-Hannifin Corp Div O-Ring Division (USA)
5-056 C0873-70 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
K73A0012-1 Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co (USA)
Related Parts
3020-00-223-2703INTERCHANGEABLE
CHAIN,ROLLER
3110-00-227-2802INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS24461-6
6810-00-262-8573INTERCHANGEABLE
FERROUS SULFATE,HEPTAHYDRATE
6810-00-262-8574INTERCHANGEABLE
CALCIUM FLUORIDE
6810-00-264-6534INTERCHANGEABLE
FERROUS SULFATE,HEPTAHYDRATE
4730-00-287-1032INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5195B0402
9905-00-347-7836INTERCHANGEABLE
PLATE,INSTRUCTION
50-56
6150-00-524-4573INTERCHANGEABLE
WIRING HARNESS
5056
4730-00-677-2547INTERCHANGEABLE
ELBOW,TUBE
505-6
5961-00-913-2121INTERCHANGEABLE
TRANSISTOR
4730-00-914-2880INTERCHANGEABLE
CLAMP,HOSE
5056
5310-00-919-3871INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5331-00-323-2817?

NSN 5331-00-323-2817 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-323-2817?

NSN 5331-00-323-2817 has 5 cross-referenced part numbers: 5-056C147-70 (Parker-Hannifin Corp Div O-Ring Division), 5-056 (Zf Industrieantriebe Witten Gmbh), 5-056C873-70 (Parker-Hannifin Corp Div O-Ring Division), 5-056 C0873-70 (Parker-Hannifin Corp Div O-Ring Division), K73A0012-1 (Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co).

What NSN replaces 5331-00-323-2817?

There are 12 known substitutes for 5331-00-323-2817: 3020-00-223-2703, 3110-00-227-2802, 6810-00-262-8573 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5-056 C0873-70?

Key specifications for 5-056 C0873-70: Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 0.366 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR; Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN. 6 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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