Product Description

Military and Aerospace Fluorocarbon (FKM) O-Rings from Datwyler”s Parco Brand: US industry know-how, Swiss quality standards – and compliance with multiple military and aerospace specifications.

The Datwyler Advantage: Our military and aerospace-compliant fluorocarbon O-rings have excellent physical properties. Combine that with batch number and cure date traceability, AS9100 and AC7115 certifications as well as a wide variety of applications, and rest assured that you’ve made the right choice.

Key Benefits

Parco’s 9266-75 fluorocarbon seals are ideal for military and aerospace applications. Key features include the following: • Meets popular military specification: Parco 9266-75 seals exceed the requirements for AMS 7276 and is QPL-listed. • Wide range of service temperatures: Parco 9266-75 seals are suitable for applications ranging from -20 to +400°F.

Chemical Resistance

USE WITH

Carbon Tetrachloride Diester Synthetic Lubricants Gasoline Ethyl Hot Air Toluene

DO NOT USE WITH

Acetone Amines Acetate

Typical Values for Compound

Sec. of Spec	Physical Property	Requirements	Result	ASTM Test Method

	Original Properties
3.2.1.1	Hardness, Shore A	75 ± 5	78	D1414
3.2.1.1.a	Hardness, Shore A, Plied Button	75 ± 5	79	D2240
3.2.1.2	Tensile strength, MPa (psi), min.	9.65(1400)	13.5(1959)	D1414
3.2.1.3	Ultimate elongation, pct., min.	125	237	D1414
3.2.1.4	Specific gravity	1.85 ± 0.02	1.85	D297

	Compression Set			D395
3.2.2	22 hours at 200°C (392°F)			Method B
	pct. of original deflection, max.	15	11	D1414

	Compression Set			D395
3.2.3	336 hours at 200°C (392°F)			Method B
	pct. of original deflection, max.	40	40	D1414

	Low Temperature Properties
3.2.4	TR-10, °C(°F), max.	-15(5)	-17(2)	D1329

	Heat Aging			D573
3.2.5	70 hours at 270°C (518°F)			D1414
3.2.5.1	Hardness change, pts., Shore A	-5 to 10	-1
3.2.5.2	Tensile strength change, pct., max.	-35	-13.5783563
3.2.5.3	Ultimate elongation change, pct., max.	-15	6.329113924
3.2.5.4	Weight loss, max.	10	3	Para. 4.4.1

	Fluid Aging, ASTM Reference Fuel B			D471
3.2.6	70 hours at 23°C (73°F)			D1414
3.2.6.1	Hardness change, pts., Shore A	± 5	-1
3.2.6.2	Tensile strength change, pct., max.	-20	-1.939765186
3.2.6.3	Ultimate elongation change, pct., max.	-20	-1.687763713
3.2.6.4	Volume change, pct.	0 to 5	2

	Fluid Aging, Mobil MCP 1201 (ARM 200, AMS 3023)			D471
3.2.7	70 hours at 200°C (392°F)			D1414
3.2.7.1	Hardness change, pts., Shore A	-15 to 0	-10
3.2.7.2	Tensile strength change, pct., max.	-35	-15.05870342
3.2.7.3	Ultimate elongation change, pct., max.	-20	-5.485232068
3.2.7.4	Volume change, pct.	1 to 25	16
3.2.7.5	Compression Set			D395
	pct. of original deflection, max.	10	9	Method B