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NE60BK51-OR-020
CS

0.070 in

(1.78 mm)

ID

0.864 in

(21.95 mm)

ORing cut reference

NEO NE60BK51 O-Ring, Size: -020

Material: NEO NE60BK51 O-Ring

Size: AS568 -020 O-Ring

Part Number: NE60BK51-OR-020

NE60BK51

Neoprene® (Chloroprene)

60

Shore A

MIL-R-6855 Class 2 Grade 60

Color: Black

Detailed Description

NE60BK51-OR-020 is a Black, 60 Shore A, Neoprene® (Chloroprene) O-Ring. NE60BK51 is manufactured with the following features & specifications: MIL-R-6855 Class 2 Grade 60. NE60BK51-OR-020 is AS568 size -020 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 21.95mm (Inside Diameter (ID)).


Material: NEO NE60BK51 O-Ring


Size: AS568 -020, 1.78mm CS X 21.95mm ID (0.070" CS X 0.864" ID)

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Technical SpecificationValue
Compound NumberNE60BK51
MaterialNeoprene® (Chloroprene)
ColorBlack
Durometer60 Shore A
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardAS568
Size-020
Cross Section (CS)1.78 mm / 0.070 in
Inside Diameter (ID)21.95 mm / 0.864 in
Other Specifications

MIL-R-6855 Class 2 Grade 60

ORing cut reference

NE60BK51 is Canyon’s MIL-R-6855 compliant 60 Shore A black Neoprene (CR) compound engineered for O-rings and gaskets requiring reliable low-temperature performance and superior compression set resistance. This material offers good resistance to weathering, moderate heat, and low-temperature solvents and refrigerants, supporting consistent sealing in aerospace, military, and industrial environments. With a service temperature range of -40°C to 125°C (-40°F to 257°F), NE60BK51 maintains elasticity and sealing force through temperature cycling in static and light dynamic applications. Its mid-range durometer balances conformability with improved extrusion resistance for dependable long-term service. Compare NE60BK51 to Parker C1124-70 for similar specification-driven, low-temperature Neoprene sealing performance.

 

NE60BK51 meets ASTM D2000 5BC610 requirements and MIL-R-6855 Class 2, Type A and B, Grade 60, making it suitable for qualified programs that require documented compliance and repeatable material properties. This compound is commonly selected for applications prioritizing cold-service capability, environmental durability, and value without transitioning to higher-cost fluorinated elastomers.

 

Common relevant keywords:
MIL-R-6855 Neoprene, 60 Shore A CR O-rings, low temperature Neoprene gaskets, military grade Neoprene seals, compression set resistant CR rubber, aerospace Neoprene elastomer, refrigerant compatible Neoprene, ASTM D2000 Neoprene compound, cold service rubber O-rings, Parker C1124-70 equivalent, Datasheet, TDS, Test Report, MTR, MSDS, SDS