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Technical Data Sheet
A042055777 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, hardness_rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 9.000 INCHES NOMINAL IN, aperture_diameter: 1.875 INCHES NOMINAL IN, cross-sectional_thickness: 0.028 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-584-1592, 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
A042055777
NSN: 5330-00-584-1592
FSC: 5330
CAGE: 35510 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hardness_rating45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter9.000 INCHES NOMINAL IN
aperture_diameter1.875 INCHES NOMINAL IN
cross-sectional_thickness0.028 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM D2000 2BC515ABF1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-584-1592
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A042055777 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
APERTURE DIAMETER: 1.875 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.028 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER: 9.000 INCHES NOMINAL IN
HARDNESS RATING: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC515ABF1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER1.875 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.028 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER9.000 INCHES NOMINAL IN
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC515ABF1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
55777Interchangeable
interchangeable cross-reference
interchangeable
8109021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A042055777?
A042055777 is a GASKET.
What parts can replace A042055777?
There are 2 known substitutes for A042055777: 55777, 8109021. Substitute compatibility should be verified for your specific system.
What is the NSN for A042055777?
A042055777 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-584-1592. This indicates validated use in U.S. government and defense supply chains.
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