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Technical Data Sheet
PartsTable / COMPONENT / 4733B
4733B ✓ 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 SEPARATOR,PIPELINE is a the manufacturer industrial component. Key specifications include material: STEEL, flow_type: VERTICAL, flow_direction: DOWN, largest_diameter: 3.910 INCHES NOMINAL IN, special_features: W/MTG FLANGE 2.840 X 2.840 W/4 MTG HOLES 0.548 IN. DIA 2.448 IN.

BOLT CIRCLE DIA W, inlet_connection_type: FLANGE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-386-9819, 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
4733B
NSN: 5330-00-386-9819
FSC: 5330
CAGE: 30988 — THERMO ELECTRON CORPORATION DBA IEC CENTRIFUGE DIV LABORATORY EQUIPMENT DIVSION (USA)
SPECIFICATIONS
materialSTEEL
flow_typeVERTICAL
flow_directionDOWN
largest_diameter3.910 INCHES NOMINAL IN
special_featuresW/MTG FLANGE 2.840 X 2.840 W/4 MTG HOLES 0.548 IN. DIA 2.448 IN. BOLT CIRCLE DIA W
inlet_connection_typeFLANGE
outlet_connection_typeTHREADED
supplementary_featuresDISTANCE BETWEEN DRAIN CONNECTION CL AND OUTLET CONECTION FACE-9.250 IN. IN
connection_thread_seriesNPT
inlet_bolt_hole_diameter0.500 INCHES NOMINAL IN
inlet_bolt_hole_quantity4
drain_hole_connection_typeTHREADED
NSN5330-00-386-9819
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4733B 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
8111B0440-3Interchangeable
interchangeable cross-reference
interchangeable
2334Interchangeable
interchangeable cross-reference
interchangeable
9023813Interchangeable
interchangeable cross-reference
interchangeable
2129-109Interchangeable
interchangeable cross-reference
interchangeable
701701-67Interchangeable
interchangeable cross-reference
interchangeable
9750Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4733B?
4733B is a SEPARATOR,PIPELINE.
What parts can replace 4733B?
There are 10 known substitutes for 4733B: 8111B0440-3, 2334, 9023813 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4733B?
4733B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-386-9819. 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