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Technical Data Sheet
PartsTable / O-RING / 406775
406775 ✓ Verified by PartsTable
Legrand · 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 CUP,GREASE is a Legrand industrial component. Key specifications include end_item_identification: CHINOOK HELICOPTER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-167-5176, 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
406775
NSN: 5331-00-167-5176
FSC: 5331 — O-RING
CAGE: 77521 — BOSCH AUTOMATION TECHNOLOGY (USA)
SPECIFICATIONS
end_item_identificationCHINOOK HELICOPTER
NSN5331-00-167-5176
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 406775 MFR: Legrand ⚠ 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
•
CROSS-SECTIONAL HEIGHT: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
CENTER HOLE DIAMETER: 1.161 INCHES MINIMUM AND 1.181 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
OUTSIDE DIAMETER: 1.385 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
CENTER HOLE DIAMETER1.161 INCHES MINIMUM AND 1.181 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
OUTSIDE DIAMETER1.385 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
5306PL1018778Interchangeable
interchangeable cross-reference
interchangeable
AN4-23AInterchangeable
interchangeable cross-reference
interchangeable
F26089-8Interchangeable
interchangeable cross-reference
interchangeable
R49388-916GInterchangeable
interchangeable cross-reference
interchangeable
MILC36044Interchangeable
interchangeable cross-reference
interchangeable
5867406775Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 406775?
406775 is a CUP,GREASE manufactured by Legrand.
What parts can replace 406775?
There are 24 known substitutes for 406775: 5306PL1018778, AN4-23A, F26089-8 and 21 more. Substitute compatibility should be verified for your specific system.
Is 406775 still available?
406775 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026