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Technical Data Sheet
196A859H38 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: THREADED, thread_class: 3B, overall_diameter: 1.438 INCHES NOMINAL IN, round_cap_outside_surface_condition: SMOOTH, thread_size_and_series/type_designator: 1-1/4-18 UNEF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-6656, 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
196A859H38
NSN: 5340-00-598-6656
FSC: 5340
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
materialPLASTIC
design_typeTHREADED
thread_class3B
overall_diameter1.438 INCHES NOMINAL IN
round_cap_outside_surface_conditionSMOOTH
thread_size_and_series/type_designator1-1/4-18 UNEF
NSN5340-00-598-6656
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 196A859H38 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
MATERIAL: PLASTIC
THREAD CLASS: 3B
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-1/4-18 UNEF
DESIGN TYPE: THREADED
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
OVERALL DIAMETER: 1.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC
THREAD CLASS3B
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-1/4-18 UNEF
DESIGN TYPETHREADED
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
OVERALL DIAMETER1.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
5340PL0845466Upgraded Successor
successor cross-reference
successor
N351CD3Upgraded Successor
successor cross-reference
successor
5340PL1879934Upgraded Successor
successor cross-reference
successor
NAS832-6Upgraded Successor
successor cross-reference
successor
5340PL0845484Upgraded Successor
successor cross-reference
successor
CD6Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 196A859H38?
196A859H38 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 196A859H38?
There are 26 known substitutes for 196A859H38: 5340PL0845466, N351CD3, 5340PL1879934 and 23 more. Substitute compatibility should be verified for your specific system.
Is 196A859H38 still available?
196A859H38 is currently cancelled.
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