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Technical Data Sheet
PartsTable / COMPONENT / 350-450-16
350-450-16 ✓ 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 CASE, case_style: SQUARE, seal_width: 0.438 INCHES NOMINAL IN, housing_bore_diameter: 4.500 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 3.500 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 5330-00-137-0004, 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
350-450-16
NSN: 5330-00-137-0004
FSC: 5330
CAGE: 71724 — JOHN CRANE, INC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.438 INCHES NOMINAL IN
housing_bore_diameter4.500 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.500 INCHES NOMINAL IN
NSN5330-00-137-0004
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 350-450-16 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
•
SEAL WIDTH: 0.438 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
ACCOMMODATED SHAFT DIAMETER: 3.500 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 4.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
•
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.438 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER3.500 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.500 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
59008Interchangeable
interchangeable cross-reference
interchangeable
47702Interchangeable
interchangeable cross-reference
interchangeable
47107Interchangeable
interchangeable cross-reference
interchangeable
3014732Interchangeable
interchangeable cross-reference
interchangeable
4730PL0971185Interchangeable
interchangeable cross-reference
interchangeable
SPHB4-4-56-303Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 350-450-16?
350-450-16 is a SEAL,PLAIN ENCASED.
What parts can replace 350-450-16?
There are 10 known substitutes for 350-450-16: 59008, 47702, 47107 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 350-450-16?
350-450-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-137-0004. 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