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Technical Data Sheet
PartsTable / O-RING / 44,04X3,53-20B9
44,04X3,53-20B9 ✓ 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 44,04X3,53-20B9 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-620-5700, 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
44,04X3,53-20B9
NSN: 5331-00-620-5700
FSC: 5331 — O-RING
CAGE: F8226 — STACEM (FRA)
SPECIFICATIONS
Part Number44,04X3,53-20B9
NSN5331-00-620-5700
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 44,04X3,53-20B9 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
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 2.012 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER2.012 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.719 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
AS568-224Interchangeable
interchangeable cross-reference
interchangeable
8215931Interchangeable
interchangeable cross-reference
interchangeable
S-82Interchangeable
interchangeable cross-reference
interchangeable
A-A-2124-3Interchangeable
interchangeable cross-reference
interchangeable
WW-D-1991Interchangeable
interchangeable cross-reference
interchangeable
2156239Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 44,04X3,53-20B9?
44,04X3,53-20B9 is a 44,04X3,53-20B9.
What parts can replace 44,04X3,53-20B9?
There are 24 known substitutes for 44,04X3,53-20B9: AS568-224, 8215931, S-82 and 21 more. Substitute compatibility should be verified for your specific system.
Is 44,04X3,53-20B9 still available?
44,04X3,53-20B9 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