The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.637 INCHES NOMINAL IN, center_hole_diameter: 4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN, elongation_percentage: 250 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5331-00-954-2739, 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
121-3123
NSN:5331-00-954-2739 NIINs:009542739, 016085326 FSC:5331 — O-ring CAGE:66195 — SOLAR TURBINES INCORPORATED DBA SOLAR TURBINES INCORPORATED (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating
70.0 SHORE DUROMETER A NOMINAL
outside_diameter
4.637 INCHES NOMINAL IN
center_hole_diameter
4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN
elongation_percentage
250 MAXIMUM
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN
5331-00-954-2739
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.637 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 250 MAXIMUM
•
CENTER HOLE DIAMETER: 4.344 INCHES MINIMUM AND 4.374 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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FREQUENTLY ASKED QUESTIONS
What is 121-3123?
121-3123 is a O-RING.
What parts can replace 121-3123?
There are 5 known substitutes for 121-3123: 5331PL2130100, MS29561-245, SAE-AS29561 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121-3123?
121-3123 is cataloged in the U.S. Government catalog under NSN 5331-00-954-2739. This indicates validated use in U.S. government and defense supply chains.
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