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 outside_diameter: 2.012 INCHES NOMINAL IN, center_hole_diameter: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN, elongation_percentage: 300 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-078-8854, 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
MIL-R-27777B
NSN:5331-01-078-8854 FSC:5331 — O-RING CAGE:81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
outside_diameter
2.012 INCHES NOMINAL IN
center_hole_diameter
1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
elongation_percentage
300 MAXIMUM
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN
5331-01-078-8854
COMPONENT DIAGRAM
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 300 MAXIMUM
•
CENTER HOLE DIAMETER: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-27777B?
MIL-R-27777B is a O-RING.
What parts can replace MIL-R-27777B?
There are 20 known substitutes for MIL-R-27777B: AS568-224, 8215931, 12076FX and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-27777B?
MIL-R-27777B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-078-8854. This indicates validated use in U.S. government and defense supply chains.
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