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Technical Data Sheet
2-300-143 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, seal_width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, temp_rating: 330.0 FAHRENHEIT DEGF, housing_bore_diameter: 0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-984-4454, 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
2-300-143
NSN: 5330-00-984-4454
FSC: 5330
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
temp_rating330.0 FAHRENHEIT DEGF
housing_bore_diameter0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.261 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
accommodated_shaft_maximum_rated_speed99070 FEET PER MINUTE FT
NSN5330-00-984-4454
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-300-143 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
CASE STYLE: RECESSED
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 99070 FEET PER MINUTE FT
SEAL WIDTH: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
MATERIAL: STEEL CASE
SEALING ELEMENT STYLE: ANGULAR
ACCOMMODATED SHAFT DIAMETER: 0.261 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
HOUSING BORE DIAMETER: 0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLERECESSED
ACCOMMODATED SHAFT MAXIMUM RATED SPEED99070 FEET PER MINUTE FT
SEAL WIDTH0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER0.261 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
HOUSING BORE DIAMETER0.751 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
TEMP RATING330.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
51008+0024Interchangeable
interchangeable cross-reference
interchangeable
91310254Interchangeable
interchangeable cross-reference
interchangeable
B02344469Interchangeable
interchangeable cross-reference
interchangeable
509296Interchangeable
Same NIIN cross-reference
interchangeable
2-300-143-02Interchangeable
Same NIIN cross-reference
interchangeable
2-300-143-01Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-300-143?
2-300-143 is a SEAL,PLAIN ENCASED.
What parts can replace 2-300-143?
There are 6 known substitutes for 2-300-143: 51008+0024, 91310254, B02344469 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-300-143?
2-300-143 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-984-4454. This indicates validated use in U.S. government and defense supply chains.
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