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 FLUOROSILICONE CLASS FQ, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 2.381 INCHES NOMINAL IN, center_hole_diameter: 2.158 INCHES MINIMUM AND 2.192 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-099-7533, 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
M25988/1-139
NSN:5331-00-099-7533 FSC:5331 — O-RING CAGE:0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
material
RUBBER FLUOROSILICONE CLASS FQ
hardness_rating
70.0 SHORE DUROMETER A NOMINAL
outside_diameter
2.381 INCHES NOMINAL IN
center_hole_diameter
2.158 INCHES MINIMUM AND 2.192 INCHES MAXIMUM IN
elongation_percentage
125 MAXIMUM
cross-sectional_height
0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN
5331-00-099-7533
COMPONENT DIAGRAM
KEY FEATURES
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 2.158 INCHES MINIMUM AND 2.192 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.381 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is M25988/1-139?
M25988/1-139 is a O-RING.
What parts can replace M25988/1-139?
There are 37 known substitutes for M25988/1-139: MILR25988ES, PRP111-11646, H733-4-111 and 34 more. Substitute compatibility should be verified for your specific system.
Is M25988/1-139 still available?
M25988/1-139 is currently cancelled.
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