The O-RING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1212 OVERALL, head_style: HEXAGON, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.250 INCHES MINIMUM IN, fastener_length: 5.250 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5331-00-595-6330, 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
A20439
NSN:5331-00-595-6330 NIINs:005956330, 007161255 FSC:5331 — O-ring CAGE:78770 — MIDDLEBY MARSHALL INC TOASTMASTER COOKING AND WARMING EQUIPMENT DIV (USA)
SPECIFICATIONS
material
STEEL COMP 1212 OVERALL
head_style
HEXAGON
head_height
0.312 INCHES NOMINAL IN
thread_class
2A A
thread_length
1.250 INCHES MINIMUM IN
fastener_length
5.250 INCHES NOMINAL IN
thread_direction
RIGHT-HAND
features_provided
FINISHED HEAD
width_between_flats
0.625 INCHES NOMINAL IN
nominal_thread_diameter
0.438 INCHES IN
thread_quantity_per_inch
20
thread_series_designator
UNF
NSN
5331-00-595-6330
COMPONENT DIAGRAM
KEY FEATURES
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.735 INCHES MINIMUM AND 1.773 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
CENTER HOLE DIAMETER: 1.601 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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FREQUENTLY ASKED QUESTIONS
What is A20439?
A20439 is a O-RING.
What parts can replace A20439?
There are 7 known substitutes for A20439: 2-030N674-70, 2-030 N0674-70, 2-03D N674-70 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A20439?
A20439 is cataloged in the U.S. Government catalog under NSN 5331-00-595-6330. This indicates validated use in U.S. government and defense supply chains.
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