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PartsTable / O-RING / EA1000 ITEM 57
EA1000 ITEM 57 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, special_features: VALVE ELECT ACTUATOR, center_hole_diameter: 0.500 INCHES NOMINAL IN, cross-sectional_height: 0.063 INCHES NOMINAL IN, end_item_identification: TICONDEROGA CLASS CG(47). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-468-5045, 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
EA1000 ITEM 57
NSN: 5331-01-468-5045
FSC: 5331 — O-RING
CAGE: 21013 — METREX VALVE CORP. DBA METREX VALVE CORP (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
special_featuresVALVE ELECT ACTUATOR
center_hole_diameter0.500 INCHES NOMINAL IN
cross-sectional_height0.063 INCHES NOMINAL IN
end_item_identificationTICONDEROGA CLASS CG(47)
NSN5331-01-468-5045
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EA1000 ITEM 57 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.063 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESVALVE ELECT ACTUATOR
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.063 INCHES NOMINAL IN
END ITEM IDENTIFICATIONTICONDEROGA CLASS CG(47)
CENTER HOLE DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
12-1AInterchangeable
interchangeable cross-reference
interchangeable
122358-12Interchangeable
interchangeable cross-reference
interchangeable
E12Interchangeable
interchangeable cross-reference
interchangeable
16152Interchangeable
interchangeable cross-reference
interchangeable
329930Interchangeable
interchangeable cross-reference
interchangeable
1251-0143Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EA1000 ITEM 57?
EA1000 ITEM 57 is a O-RING.
What parts can replace EA1000 ITEM 57?
There are 12 known substitutes for EA1000 ITEM 57: 12-1A, 122358-12, E12 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EA1000 ITEM 57?
EA1000 ITEM 57 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-468-5045. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026