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Technical Data Sheet
EF90-172 ✓ 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 material: STEEL CORROSION RESISTING SPRING, case_style: FLANGED, seal_width: 0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, housing_bore_diameter: 1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN, sealing_element_style: VERTICAL-ANGULAR, accommodated_shaft_diameter: 2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM 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 5330-01-406-1250, 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
EF90-172
NSN: 5330-01-406-1250
FSC: 5330
CAGE: 0LC64 — CRANE JOHN INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SPRING
case_styleFLANGED
seal_width0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
housing_bore_diameter1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM IN
NSN5330-01-406-1250
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EF90-172 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: FLANGED
HOUSING BORE DIAMETER: 1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER: 2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM IN
SEAL WIDTH: 0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
MATERIAL: STEEL CORROSION RESISTING SPRING
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLEFLANGED
HOUSING BORE DIAMETER1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM IN
SEAL WIDTH0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING SPRING
SEALING ELEMENT STYLEVERTICAL-ANGULAR
MATERIALSTEEL CORROSION RESISTING CASE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AA59649-093AInterchangeable
interchangeable cross-reference
interchangeable
70477Interchangeable
interchangeable cross-reference
interchangeable
15126Interchangeable
interchangeable cross-reference
interchangeable
FR30SN0-187Interchangeable
interchangeable cross-reference
interchangeable
C2850-2863-4Interchangeable
interchangeable cross-reference
interchangeable
55039-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EF90-172?
EF90-172 is a SEAL,PLAIN ENCASED.
What parts can replace EF90-172?
There are 8 known substitutes for EF90-172: AA59649-093A, 70477, 15126 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EF90-172?
EF90-172 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-406-1250. This indicates validated use in U.S. government and defense supply chains.
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