Descriptions
O-Rings are used in static sealing and some dynamic applications. O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set.
In addition, certain O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation. Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.
Attributes:
- Cross Section Diameter (in): 0.139
- Inside Diameter (in): 3.734
- SAE AS568 Dash Size: -240
- Material: NBR (90),NBR - Nitrile,Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
- Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
- Notes: Dimensions and material descriptions provided for reference only.
- Polymer: NBR (Nitrile butadiene)
- Applications: Ambient temperature fuel handling; High and low pressure LPG service; Hydraulic fluids (to 10,335 kPa/1,500 psi); Power steering seals; Radiator thermostat seals
- Not Compatible With: Automotive and aircraft brake fluids; High levels of ozone; Ketones; Phosphate ester fluids; Strong acids; UV light
- Material Hardness: 90A
- Compatible With: Abrasion resistant; Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Hydrocarbon fuels; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants; ORFS, STORS seals
- Dash Size: 240
- Temperature (°F): -40 - 212
- Seal/O-Ring Type: Standard
- Primary Sealing Material: Rubber
Compatible Models
PUMPER
SPT343
GENERATOR
SR4 SR4BHV SR4B
GENERATOR SET
C175-16 3516 3516C 3516B
WHEEL TRACTOR
613C II
VEHICULAR ENGINE
3516 3512
PETROLEUM ENGINE
3508C 3516C 3512C
BACKHOE LOADER
446B
SOIL STABILIZER
SS-250
ROAD RECLAIMER
RR-250
ENGINE - MACHINE
C4.4
GEN SET ENGINE
3508 3606 3512 3516 3516B
INDUSTRIAL TRACTOR
HA771
CHALLENGER
65B 75 65
MARINE AUXILIARY
3512B 3508B 3516B
MARINE ENGINE
3516 3512 3508
MINING EXCAVATOR
5230 5130B
INDUSTRIAL ENGINE
3508B 3516B 3508 3512 3516
WHEEL FELLER BUNCHER
533