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PartsTable / COMPONENT / 30-018 IT 8
30-018 IT 8 ✓ 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 CASE, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, hardness_rating: 60.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM SEALING ELEMENT A, special_features: SEAL,NATIONAL 472409, housing_bore_diameter: 3.189 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 5330-01-502-8269, 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
30-018 IT 8
NSN: 5330-01-502-8269
FSC: 5330
CAGE: 1PQ32 — KONRAD MARINE INC DIV KONRAD MARINE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
hardness_rating60.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM SEALING ELEMENT A
special_featuresSEAL,NATIONAL 472409
housing_bore_diameter3.189 INCHES NOMINAL IN
sealing_element_styleVERTICAL
end_item_identificationGIMBLE HOUSING ASSY,STERN DRIVE
accommodated_shaft_diameter2.125 INCHES NOMINAL IN
NSN5330-01-502-8269
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 30-018 IT 8 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
•
SEALING ELEMENT STYLE: VERTICAL
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.189 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 2.125 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEVERTICAL
END ITEM IDENTIFICATIONGIMBLE HOUSING ASSY,STERN DRIVE
SPECIAL FEATURESSEAL,NATIONAL 472409
SEAL WIDTH0.375 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.189 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.125 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A
MATERIALSTEEL CORROSION RESISTING CASE
HARDNESS RATING60.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM SEALING ELEMENT A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
472409Interchangeable
interchangeable cross-reference
interchangeable
F65042Interchangeable
interchangeable cross-reference
interchangeable
63203Interchangeable
interchangeable cross-reference
interchangeable
13310-02Interchangeable
interchangeable cross-reference
interchangeable
472409-01Interchangeable
interchangeable cross-reference
interchangeable
30-003C-A IT 41Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30-018 IT 8?
30-018 IT 8 is a SEAL,PLAIN ENCASED.
What parts can replace 30-018 IT 8?
There are 8 known substitutes for 30-018 IT 8: 472409, F65042, 63203 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30-018 IT 8?
30-018 IT 8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-502-8269. 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