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221551 ✓ 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 BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include style_designator: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-0903, 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
221551
NSN: 5330-00-154-0903
FSC: 5330
CAGE: 55737 — DRESSER CONSTRUCTION AND MINING EQUIPMENT DRESSER INDUSTRIES INC JEFFREY DIV PROCESSING EQUIPMENT (USA)
SPECIFICATIONS
style_designatorROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5330-00-154-0903
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 221551 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
•
OUTSIDE DIAMETER: 2.004 INCHES NOMINAL IN
•
TEMP RATING: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
•
MAXIMUM PRESSURE RATING: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.188 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.004 INCHES NOMINAL IN
TEMP RATING-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
MAXIMUM PRESSURE RATING7.0 POUNDS PER SQUARE INCH (PSI) LBS
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.188 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
COLORBLACK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
590-291Interchangeable
interchangeable cross-reference
interchangeable
11800Interchangeable
interchangeable cross-reference
interchangeable
114-344Interchangeable
interchangeable cross-reference
interchangeable
130111Interchangeable
interchangeable cross-reference
interchangeable
F3U219HInterchangeable
interchangeable cross-reference
interchangeable
F219Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221551?
221551 is a BEARING,WASHER,THRUST.
What parts can replace 221551?
There are 28 known substitutes for 221551: 590-291, 11800, 114-344 and 25 more. Substitute compatibility should be verified for your specific system.
Is 221551 still available?
221551 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