Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The BUMPER is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER SYNTHETIC, hole_diameter: 0.188 INCHES NOMINAL IN, overall_height: 0.563 INCHES NOMINAL IN, special_features: FURNISHED W/STEEL WASHER, style_designator: FLAT TOP COUNTERBORED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-291-3650, 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
18W403
NSN:5340-00-291-3650 FSC:5340 CAGE:70485 — ATLANTIC INDIA RUBBER CO INC (USA)
SPECIFICATIONS
color
BLACK
material
RUBBER SYNTHETIC
hole_diameter
0.188 INCHES NOMINAL IN
overall_height
0.563 INCHES NOMINAL IN
special_features
FURNISHED W/STEEL WASHER
style_designator
FLAT TOP COUNTERBORED
first_counterbore_depth
0.250 INCHES NOMINAL IN
material_hardness_rating
55.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
first_counterbore_diameter
0.375 INCHES NOMINAL IN
outside/top_flange_diameter
0.750 INCHES NOMINAL IN
NSN
5340-00-291-3650
COMPONENT DIAGRAM
KEY FEATURES
•
FIRST COUNTERBORE DIAMETER: 0.375 INCHES NOMINAL IN
•
COLOR: BLACK
•
HOLE DIAMETER: 0.188 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
•
FIRST COUNTERBORE DEPTH: 0.250 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST COUNTERBORE DIAMETER
0.375 INCHES NOMINAL IN
SPECIAL FEATURES
FURNISHED W/STEEL WASHER
OVERALL HEIGHT
0.563 INCHES NOMINAL IN
COLOR
BLACK
HOLE DIAMETER
0.188 INCHES NOMINAL IN
MATERIAL HARDNESS RATING
55.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
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FREQUENTLY ASKED QUESTIONS
What is 18W403?
18W403 is a BUMPER.
What parts can replace 18W403?
There are 28 known substitutes for 18W403: MS90726-34, 3537, 70008-34 and 25 more. Substitute compatibility should be verified for your specific system.
Is 18W403 still available?
18W403 is currently cancelled.
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