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50385S ✓ 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: SQUARE, seal_width: 0.250 INCHES NOMINAL IN, outside_diameter: 0.753 INCHES NOMINAL IN, housing_bore_diameter: 0.750 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-010-2099, 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
50385S
NSN: 5330-00-010-2099
FSC: 5330
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
outside_diameter0.753 INCHES NOMINAL IN
housing_bore_diameter0.750 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.375 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1000 FEET PER MINUTE FT
NSN5330-00-010-2099
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 50385S 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: SQUARE
•
HOUSING BORE DIAMETER: 0.753 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.753 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
HOUSING BORE DIAMETER0.753 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL CASE
SEAL WIDTH0.250 INCHES NOMINAL IN
OUTSIDE DIAMETER0.753 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
T34864Interchangeable
interchangeable cross-reference
interchangeable
SAE-J20/2Interchangeable
interchangeable cross-reference
interchangeable
V12-018-006Interchangeable
interchangeable cross-reference
interchangeable
CL138-1Interchangeable
interchangeable cross-reference
interchangeable
3687Interchangeable
IBM SAS Cbl Yi Syst to SAS 3m
interchangeable
T-3687Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50385S?
50385S is a SEAL,PLAIN ENCASED.
What parts can replace 50385S?
There are 19 known substitutes for 50385S: T34864, SAE-J20/2, V12-018-006 and 16 more. Substitute compatibility should be verified for your specific system.
Is 50385S still available?
50385S is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026