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Technical Data Sheet
A42555 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include case_style: SQUARE, seal_width: 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF, housing_bore_diameter: 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN, accommodated_shaft_diameter: 0.670 INCHES NOMINAL 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 5330-00-109-7062, 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
A42555
NSN: 5330-00-109-7062
FSC: 5330
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
case_styleSQUARE
seal_width0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
housing_bore_diameter1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
accommodated_shaft_diameter0.670 INCHES NOMINAL IN
NSN5330-00-109-7062
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A42555 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
CASE STYLE: SQUARE
HOUSING BORE DIAMETER: 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
SEAL WIDTH: 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER: 0.670 INCHES NOMINAL IN
TEMP RATING: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
HOUSING BORE DIAMETER1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
SEAL WIDTH0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER0.670 INCHES NOMINAL IN
TEMP RATING-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
17484Interchangeable
interchangeable cross-reference
interchangeable
42555Interchangeable
interchangeable cross-reference
interchangeable
56613Interchangeable
interchangeable cross-reference
interchangeable
BS04179Interchangeable
interchangeable cross-reference
interchangeable
L3531BInterchangeable
interchangeable cross-reference
interchangeable
63X912Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A42555?
A42555 is a SEAL,PLAIN ENCASED.
What parts can replace A42555?
There are 14 known substitutes for A42555: 17484, 42555, 56613 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A42555?
A42555 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-109-7062. This indicates validated use in U.S. government and defense supply chains.
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