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Technical Data Sheet
51749 ✓ 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 FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.750 INCHES NOMINAL IN, connection_style: SWIVEL NUT FLARE FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-179-0994, 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
51749
NSN: 5330-00-179-0994
FSC: 5330
CAGE: 97907 — TEREX CORP (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.750 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure3000.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size1.062 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
NSN5330-00-179-0994
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51749 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
SEAL WIDTH: 0.469 INCHES NOMINAL IN
SEALING ELEMENT STYLE: ANGULAR
CASE STYLE: SQUARE
MATERIAL: STEEL CASE
HOUSING BORE DIAMETER: 3.371 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 2.000 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.469 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
MATERIALSTEEL CASE
HOUSING BORE DIAMETER3.371 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.000 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
12799Interchangeable
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1307RInterchangeable
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9307Interchangeable
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6307ARSInterchangeable
interchangeable cross-reference
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NA44143-44363DInterchangeable
interchangeable cross-reference
interchangeable
MS19089-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51749?
51749 is a FILTER ELEMENT,FLUID.
What parts can replace 51749?
There are 28 known substitutes for 51749: 12799, 1307R, 9307 and 25 more. Substitute compatibility should be verified for your specific system.
Is 51749 still available?
51749 is currently cancelled.
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