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Technical Data Sheet
PartsTable / COMPONENT / 42110B
42110B ✓ 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 VINYL, design_type: FRICTION, overall_diameter: 5.308 INCHES NOMINAL IN, inside_diameter_length: 0.344 INCHES NOMINAL IN, round_cap_outside_surface_condition: SMOOTH, tube_outside_diameter_for_which_designed: 4.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-917-7846, 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
42110B
NSN: 5340-00-917-7846
FSC: 5340
CAGE: 73760 — ITT AEROSPACE CONTROLS LLC DBA ITT AEROSPACE CONTROLS UNIT S (USA)
SPECIFICATIONS
materialPLASTIC VINYL
design_typeFRICTION
overall_diameter5.308 INCHES NOMINAL IN
inside_diameter_length0.344 INCHES NOMINAL IN
round_cap_outside_surface_conditionSMOOTH
tube_outside_diameter_for_which_designed4.500 INCHES NOMINAL IN
NSN5340-00-917-7846
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 42110B 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
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
•
DESIGN TYPE: FRICTION
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 4.500 INCHES NOMINAL IN
•
MATERIAL: PLASTIC VINYL
•
INSIDE DIAMETER LENGTH: 0.344 INCHES NOMINAL IN
•
OVERALL DIAMETER: 5.308 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
DESIGN TYPEFRICTION
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED4.500 INCHES NOMINAL IN
MATERIALPLASTIC VINYL
INSIDE DIAMETER LENGTH0.344 INCHES NOMINAL IN
OVERALL DIAMETER5.308 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
5250Upgraded Successor
successor cross-reference
successor
525Upgraded Successor
successor cross-reference
successor
194-505-9009Interchangeable
Same NIIN cross-reference
interchangeable
5-25EAInterchangeable
Same NIIN cross-reference
interchangeable
FC-450Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42110B?
42110B is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 42110B?
There are 5 known substitutes for 42110B: 5250, 525, 194-505-9009 and 2 more. Substitute compatibility should be verified for your specific system.
Is 42110B still available?
42110B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026