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PartsTable / COMPONENT / M450272
M450272 ✓ 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: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, seal_width: 0.500 INCHES NOMINAL IN, outside_diameter: 2.690 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 2.688 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 5330-00-803-2630, 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
M450272
NSN: 5330-00-803-2630
FSC: 5330
CAGE: 0B0B1 — MAHLE AFTERMARKET INC. DBA AE CLEVITE INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.500 INCHES NOMINAL IN
outside_diameter2.690 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.688 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.875 INCHES NOMINAL IN
NSN5330-00-803-2630
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M450272 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
•
ACCOMMODATED SHAFT DIAMETER: 1.875 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
SEAL WIDTH: 0.500 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.690 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.688 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SURFACE TREATMENT: PLASTIC CASE
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER1.875 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.500 INCHES NOMINAL IN
OUTSIDE DIAMETER2.690 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.688 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CASE
CASE STYLERECESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
139268Interchangeable
interchangeable cross-reference
interchangeable
1021-335Interchangeable
interchangeable cross-reference
interchangeable
18626Interchangeable
interchangeable cross-reference
interchangeable
31404Interchangeable
interchangeable cross-reference
interchangeable
35546Interchangeable
interchangeable cross-reference
interchangeable
DD-4651 REF NO 11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M450272?
M450272 is a SEAL,PLAIN ENCASED.
What parts can replace M450272?
There are 14 known substitutes for M450272: 139268, 1021-335, 18626 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M450272?
M450272 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-803-2630. 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