Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 0.504 INCHES NOMINAL IN, center_hole_diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-241-7740, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
65E5251 PC31
NSN:5331-01-241-7740 FSC:5331 — O-RING CAGE:38450 — ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating
65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
outside_diameter
0.504 INCHES NOMINAL IN
center_hole_diameter
0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
elongation_percentage
200 MAXIMUM
cross-sectional_height
0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
criticality_code_justification
ADYT
NSN
5331-01-241-7740
COMPONENT DIAGRAM
KEY FEATURES
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 0.504 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: ADYT
•
CENTER HOLE DIAMETER: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 200 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING
65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
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FREQUENTLY ASKED QUESTIONS
What is 65E5251 PC31?
65E5251 PC31 is a O-RING.
What parts can replace 65E5251 PC31?
There are 8 known substitutes for 65E5251 PC31: MS29513-012, AS568-012MIL-P- 5315, 725-70-012 and 5 more. Substitute compatibility should be verified for your specific system.
Is 65E5251 PC31 still available?
65E5251 PC31 is currently cancelled.
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