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PartsTable / COMPONENT / 421815
421815 ✓ 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 BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, overall_height: 0.266 INCHES NOMINAL IN, groove_diameter: 0.188 INCHES NOMINAL IN, special_features: BOTTOM FLANGE EXTENDS TO POINT, style_designator: DOUBLE FLANGE, top_flange_width: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-631-7127, 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
421815
NSN: 5340-00-631-7127
FSC: 5340
CAGE: 94580 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE-MINNEAPOLIS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
overall_height0.266 INCHES NOMINAL IN
groove_diameter0.188 INCHES NOMINAL IN
special_featuresBOTTOM FLANGE EXTENDS TO POINT
style_designatorDOUBLE FLANGE
top_flange_width0.125 INCHES NOMINAL IN
bottom_flange_width0.094 INCHES NOMINAL IN
bottom_flange_diameter0.250 INCHES NOMINAL IN
outside/top_flange_diameter0.313 INCHES NOMINAL IN
NSN5340-00-631-7127
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 421815 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: RUBBER SYNTHETIC
•
TOP FLANGE WIDTH: 0.125 INCHES NOMINAL IN
•
BOTTOM FLANGE WIDTH: 0.094 INCHES NOMINAL IN
•
BOTTOM FLANGE DIAMETER: 0.250 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.188 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DOUBLE FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
TOP FLANGE WIDTH0.125 INCHES NOMINAL IN
BOTTOM FLANGE WIDTH0.094 INCHES NOMINAL IN
SPECIAL FEATURESBOTTOM FLANGE EXTENDS TO POINT
OVERALL HEIGHT0.266 INCHES NOMINAL IN
BOTTOM FLANGE DIAMETER0.250 INCHES NOMINAL IN
GROOVE DIAMETER0.188 INCHES NOMINAL IN
STYLE DESIGNATORDOUBLE FLANGE
OUTSIDE/TOP FLANGE DIAMETER0.313 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
1111Upgraded Successor
successor cross-reference
successor
77053219Upgraded Successor
successor cross-reference
successor
785Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421815?
421815 is a BUMPER.
What parts can replace 421815?
There are 3 known substitutes for 421815: 1111, 77053219, 785. Substitute compatibility should be verified for your specific system.
Is 421815 still available?
421815 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