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PartsTable / COMPONENT / OR-2E57X1E78-NBR70 O-RING
OR-2E57X1E78-NBR70 O-RING ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, temp_rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL, peripheral_diameter: 0.230 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, center_hole_diameter: 0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, elongation_percentage: 331 MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-338-5631, 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
OR-2E57X1E78-NBR70 O-RING
NSN: 5330-00-338-5631
FSC: 5330
CAGE: A5552 — IDS INGEGNERIA DEI SISTEMI S.P.A. (ITA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
temp_rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
peripheral_diameter0.230 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
center_hole_diameter0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
cross_section_outside_diameter0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
material_document_and_classificationSAE J200 3CH715A25B15E16E36F ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-338-5631
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: OR-2E57X1E78-NBR70 O-RING 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 0.230 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
CROSS SECTION OUTSIDE DIAMETER: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J200 3CH715A25B15E16E36F ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
PERIPHERAL DIAMETER0.230 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
ELONGATION PERCENTAGE331 MAXIMUM
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS SECTION OUTSIDE DIAMETER0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J200 3CH715A25B15E16E36F ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
CENTER HOLE DIAMETER0.096 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEO-RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
30-603Interchangeable
interchangeable cross-reference
interchangeable
A030 603-BInterchangeable
interchangeable cross-reference
interchangeable
5-28-10000XInterchangeable
interchangeable cross-reference
interchangeable
22-10-3Interchangeable
interchangeable cross-reference
interchangeable
AN3060-3Interchangeable
interchangeable cross-reference
interchangeable
AS568-005Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is OR-2E57X1E78-NBR70 O-RING?
OR-2E57X1E78-NBR70 O-RING is a PACKING,PREFORMED.
What parts can replace OR-2E57X1E78-NBR70 O-RING?
There are 17 known substitutes for OR-2E57X1E78-NBR70 O-RING: 30-603, A030 603-B, 5-28-10000X and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for OR-2E57X1E78-NBR70 O-RING?
OR-2E57X1E78-NBR70 O-RING is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-338-5631. 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