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PartsTable / COMPONENT / H9353-2
H9353-2 ✓ 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 PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 0.438 INCHES NOMINAL IN, material: STEEL, thread_class: 2A A, thread_length: 0.125 INCHES NOMINAL IN, outside_diameter: 0.312 INCHES NOMINAL IN, end_connection_type: THREADED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-362-1609, 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
H9353-2
NSN: 5340-00-362-1609
FSC: 5340
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
length0.438 INCHES NOMINAL IN
materialSTEEL
thread_class2A A
thread_length0.125 INCHES NOMINAL IN
outside_diameter0.312 INCHES NOMINAL IN
end_connection_typeTHREADED
thread_size_and_series/type_designator0.250-28 UNF
NSN5340-00-362-1609
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: H9353-2 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
•
OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
LENGTH: 0.438 INCHES NOMINAL IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.250-28 UNF
•
MATERIAL: STEEL
•
END CONNECTION TYPE: THREADED
•
THREAD CLASS: 2A A
•
THREAD LENGTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
LENGTH0.438 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.250-28 UNF
MATERIALSTEEL
END CONNECTION TYPETHREADED
THREAD CLASS2A A
THREAD LENGTH0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
S18Interchangeable
interchangeable cross-reference
interchangeable
93532Interchangeable
interchangeable cross-reference
interchangeable
WP455Interchangeable
interchangeable cross-reference
interchangeable
SM-C-771459-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H9353-2?
H9353-2 is a PLUG,VENT.
What parts can replace H9353-2?
There are 4 known substitutes for H9353-2: S18, 93532, WP455 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H9353-2?
H9353-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-362-1609. 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