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Technical Data Sheet
278124 ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include material: RUBBER SYNTHETIC TUBE, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 1.500 INCHES NOMINAL IN, outside_diameter: 2.250 INCHES NOMINAL IN, operating_pressure: 1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 5000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-178-2287, 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
278124
NSN: 5330-00-178-2287
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC TUBE
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter1.500 INCHES NOMINAL IN
outside_diameter2.250 INCHES NOMINAL IN
operating_pressure1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure5000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
hydrostatic_test_pressure2500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
cross-sectional_shape_styleROUND
nondefinitive_spec/std_data100R2 TYPE
specification/standard_data81349-MIL-DTL-52471/5 GOVERNMENT SPECIFICATION
NSN5330-00-178-2287
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 278124 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
HOUSING BORE DIAMETER: 2.783 INCHES NOMINAL IN
MATERIAL: STEEL CASE
CASE STYLE: SQUARE
ACCOMMODATED SHAFT DIAMETER: 1.750 INCHES NOMINAL IN
SEAL WIDTH: 0.531 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER2.783 INCHES NOMINAL IN
MATERIALSTEEL CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.750 INCHES NOMINAL IN
SEAL WIDTH0.531 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
100R2TYA1 1-2Interchangeable
interchangeable cross-reference
interchangeable
HYDRAULICC0NTR0L2WIRE1-1-2Interchangeable
interchangeable cross-reference
interchangeable
1509Interchangeable
interchangeable cross-reference
interchangeable
7005PC29Interchangeable
Same NIIN cross-reference
interchangeable
2410PC29Interchangeable
Same NIIN cross-reference
interchangeable
4405PC29Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 278124?
278124 is a RESISTOR,VARIABLE,WIRE WOUND,PRE.
What parts can replace 278124?
There are 13 known substitutes for 278124: 100R2TYA1 1-2, HYDRAULICC0NTR0L2WIRE1-1-2, 1509 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 278124?
278124 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-178-2287. This indicates validated use in U.S. government and defense supply chains.
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