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Technical Data Sheet
PartsTable / O-RING / F37020-120
F37020-120 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 1.234 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 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 5331-00-731-7871, 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
F37020-120
NSN: 5331-00-731-7871
FSC: 5331 — O-RING
CAGE: 96105 — FUNK MFG CO SUB OF DEERE AND CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter1.234 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-731-7871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: F37020-120 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 HOLE DIAMETER: 1.234 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.234 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
150 38Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
2410 57/64Interchangeable
interchangeable cross-reference
interchangeable
C12238Interchangeable
interchangeable cross-reference
interchangeable
110 57/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F37020-120?
F37020-120 is a O-RING.
What parts can replace F37020-120?
There are 10 known substitutes for F37020-120: 150 38, 1340, B94.11M and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F37020-120?
F37020-120 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-731-7871. 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