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Technical Data Sheet
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2A4446 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: PAPER OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.875 INCHES NOMINAL IN, aperture_width: 3.125 INCHES NOMINAL IN, overall_length: 6.062 INCHES NOMINAL IN, aperture_length: 4.012 INCHES NOMINAL 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 5330-00-423-8700, 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
2A4446
NSN: 5330-00-423-8700
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialPAPER OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.875 INCHES NOMINAL IN
aperture_width3.125 INCHES NOMINAL IN
overall_length6.062 INCHES NOMINAL IN
aperture_length4.012 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
bolt_hole_quantity4
inside_corner_radius0.250 INCHES NOMINAL IN
outside_corner_radius0.438 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-423-8700
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2A4446 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
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 5.187 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
•
MATERIAL: PAPER OVERALL
•
APERTURE LENGTH: 4.012 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
INSIDE CORNER RADIUS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH5.187 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
MATERIALPAPER OVERALL
APERTURE LENGTH4.012 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL LENGTH6.062 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.250 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.438 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
26-151Interchangeable
interchangeable cross-reference
interchangeable
B107.39Interchangeable
interchangeable cross-reference
interchangeable
B107.100 CAT 39 TY1CL1Interchangeable
interchangeable cross-reference
interchangeable
26-51Interchangeable
interchangeable cross-reference
interchangeable
1301860-46Interchangeable
interchangeable cross-reference
interchangeable
M815LInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2A4446?
2A4446 is a GASKET.
What parts can replace 2A4446?
There are 8 known substitutes for 2A4446: 26-151, B107.39, B107.100 CAT 39 TY1CL1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2A4446?
2A4446 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-423-8700. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026