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 ISOBUTYLENE-ISOPRENE CLASS IIR, temp_rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.495 INCHES NOMINAL IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 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 5331-00-057-2027, 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
0XMS28778-4CP
NSN:5331-00-057-2027 FSC:5331 — O-RING CAGE:03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
material
RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
temp_rating
-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
hardness_rating
90.0 SHORE DUROMETER A NOMINAL
outside_diameter
0.495 INCHES NOMINAL IN
center_hole_diameter
0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
cross-sectional_height
0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
departure_from_cited_document
CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justification
ZZZW
NSN
5331-00-057-2027
COMPONENT DIAGRAM
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
DEPARTURE FROM CITED DOCUMENT: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
MATERIAL: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
•
TEMP RATING: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
•
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.495 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATION
ZZZW
DEPARTURE FROM CITED DOCUMENT
CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
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FREQUENTLY ASKED QUESTIONS
What is 0XMS28778-4CP?
0XMS28778-4CP is a O-RING.
What parts can replace 0XMS28778-4CP?
There are 12 known substitutes for 0XMS28778-4CP: AS568-904E540-8, AS568-904E540-8CP, 63020 ITEM 19 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0XMS28778-4CP?
0XMS28778-4CP is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-057-2027. This indicates validated use in U.S. government and defense supply chains.
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