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Technical Data Sheet
397811 ✓ 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

BODY AND SLIDE,DIRECTIONAL CONTR. Key specifications include width: 3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN, length: 4.125 INCHES NOMINAL IN, material: IRON CAST, ear_radius: 0.344 INCHES NOMINAL IN, body_radius: 3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN, hole_diameter: 0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-350-6504, 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
397811
NSN: 5340-00-350-6504
FSC: 5340
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
width3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
length4.125 INCHES NOMINAL IN
materialIRON CAST
ear_radius0.344 INCHES NOMINAL IN
body_radius3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
hole_diameter0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
body_thickness0.188 INCHES NOMINAL IN
inside_diameter3.152 INCHES NOMINAL IN
flange_thickness0.330 INCHES NOMINAL IN
inside_corner_radius0.060 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleFOUR RADII SIDES, FOUR HOLES
NSN5340-00-350-6504
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 397811 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
INSIDE CORNER RADIUS: 0.060 INCHES NOMINAL IN
MATERIAL: IRON CAST
BODY THICKNESS: 0.188 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN
LENGTH: 4.125 INCHES NOMINAL IN
WIDTH: 3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
PERIPHERAL SHAPE STYLE: FOUR RADII SIDES, FOUR HOLES
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE CORNER RADIUS0.060 INCHES NOMINAL IN
MATERIALIRON CAST
BODY THICKNESS0.188 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN
LENGTH4.125 INCHES NOMINAL IN
WIDTH3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
PERIPHERAL SHAPE STYLEFOUR RADII SIDES, FOUR HOLES
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.558 INCHES NOMINAL IN
HOLE DIAMETER0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
203740Interchangeable
interchangeable cross-reference
interchangeable
S1714Interchangeable
interchangeable cross-reference
interchangeable
150553Interchangeable
interchangeable cross-reference
interchangeable
397811Interchangeable
interchangeable cross-reference
interchangeable
391051Interchangeable
interchangeable cross-reference
interchangeable
39781Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 397811?
397811 is a BODY AND SLIDE,DIRECTIONAL CONTR.
What parts can replace 397811?
There are 8 known substitutes for 397811: 203740, S1714, 150553 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 397811?
397811 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-350-6504. This indicates validated use in U.S. government and defense supply chains.
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