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Technical Data Sheet
PartsTable / O-RING / 73378
73378 ✓ Verified by PartsTable
Tickit · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

tickit® Mirror Blocks are different rubberwood shapes containing a double-sided acrylic mirror centre. Smooth and tactile, your child will love exploring their reflection, be captivated by the light reflection from the mirrored surface and enjoy simple block building. Ideal for learning about shapes and reflective pattern making and are lovely used with a light panel.

The blocks are the same size as our Rainbow Blocks Set (73275) which can be used in combination with this set. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-623-0000, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
73378
NSN: 5331-00-623-0000
FSC: 5331 — O-RING
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
end_item_identification2030-01-630-6123; DUAL POINT DAVIT; PN DDP11000CTS-SP2200
NSN5331-00-623-0000
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 73378 MFR: Tickit ⚠ 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: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 0.928 INCHES MINIMUM AND 0.958 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 338 MAXIMUM
•
CENTER HOLE DIAMETER: 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.070 INCHES NOMINAL IN
•
TEMP RATING: -60.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER0.928 INCHES MINIMUM AND 0.958 INCHES MAXIMUM IN
ELONGATION PERCENTAGE338 MAXIMUM
CENTER HOLE DIAMETER0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
TEMP RATING-60.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
44556Interchangeable
interchangeable cross-reference
interchangeable
FFB571ATYPEB1CLASSCInterchangeable
interchangeable cross-reference
interchangeable
60-8-36Interchangeable
interchangeable cross-reference
interchangeable
FFB571ANDTYPEB2ANDCLASSCInterchangeable
interchangeable cross-reference
interchangeable
855-3/4X3/4X5IN.Interchangeable
interchangeable cross-reference
interchangeable
3505-0750Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73378?
73378 is a CUSHION,SEAT-SURVIVAL KIT,AIRCRA manufactured by Tickit.
What parts can replace 73378?
There are 31 known substitutes for 73378: 44556, FFB571ATYPEB1CLASSC, 60-8-36 and 28 more. Substitute compatibility should be verified for your specific system.
Is 73378 still available?
73378 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