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Technical Data Sheet
ER118 ✓ 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 RING,METAL is a the manufacturer industrial component. Key specifications include material: STEEL INSERT, ring_style: CONTRACTING CONCENTRIC, overall_width: 0.5260 INCHES MINIMUM AND 0.5460 INCHES MAXIMUM IN, inside_diameter: 1.937 INCHES NOMINAL IN, radial_wall_thickness: 0.1940 INCHES NOMINAL IN, cross-sectional_shape_style: STRAIGHT FACE, TRIPLE SCRAPER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-499-4486, 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
ER118
NSN: 5330-00-499-4486
FSC: 5330
CAGE: 52676 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL INSERT
ring_styleCONTRACTING CONCENTRIC
overall_width0.5260 INCHES MINIMUM AND 0.5460 INCHES MAXIMUM IN
inside_diameter1.937 INCHES NOMINAL IN
radial_wall_thickness0.1940 INCHES NOMINAL IN
cross-sectional_shape_styleSTRAIGHT FACE, TRIPLE SCRAPER
NSN5330-00-499-4486
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ER118 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
INSIDE DIAMETER: 1.937 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: STRAIGHT FACE, TRIPLE SCRAPER
MATERIAL: STEEL INSERT
RADIAL WALL THICKNESS: 0.1940 INCHES NOMINAL IN
RING STYLE: CONTRACTING CONCENTRIC
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.937 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESTRAIGHT FACE, TRIPLE SCRAPER
MATERIALSTEEL INSERT
RADIAL WALL THICKNESS0.1940 INCHES NOMINAL IN
OVERALL WIDTH0.5260 INCHES MINIMUM AND 0.5460 INCHES MAXIMUM IN
RING STYLECONTRACTING CONCENTRIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2551-6Interchangeable
interchangeable cross-reference
interchangeable
PB2551-6Interchangeable
interchangeable cross-reference
interchangeable
6090450-6Interchangeable
interchangeable cross-reference
interchangeable
207435Interchangeable
interchangeable cross-reference
interchangeable
25516-1Interchangeable
interchangeable cross-reference
interchangeable
320089Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER118?
ER118 is a SEAL RING,METAL.
What parts can replace ER118?
There are 11 known substitutes for ER118: 2551-6, PB2551-6, 6090450-6 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ER118?
ER118 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-499-4486. This indicates validated use in U.S. government and defense supply chains.
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