Product Description

Military and Aerospace Fluorosilicone (FVMQ) 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 fluorosilicone rubber 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.

Typical Values for Compound

Sec. of Spec	Physical Property		Requirements	Result (a)	ASTM Test Method

	Original Properties
3.2.1	Hardness, Shore A		70 ± 5	71	D2240
3.2.2	Tensile strength, MPa (psi), min.		10.3(1500)	14.1(2050)	D1414
3.2.3	Ultimate elongation, pct., min.		150	264	D1414
3.2.4	Corrosion	(b)	Nil	N/A	Para 3.2.12(c)
3.2.5	Specific gravity		1.28 ± 0.02	1.295	D297

	Fluid Aging, ASTM Reference Fuel B
3.2.6	168 hours at 23°C (73°F)				D471
3.2.6.1	Hardness change, pts., Shore A		-25 to 0	0	D1414
3.2.6.2	Tensile strength change, pct., max.		-65	-44
3.2.6.3	Ultimate elongation change, pct., max.		-55	-24
3.2.6.4	Volume change, pct.		0 to 40	37

3.2.7	Fluid Aging, ASTM Reference Fuel B				Para.
	70 hours at 23°C (73°F)				4.6.1
	Then in ASTM Reference Fuel A
	70 hours at 23°C (73°F)
	Dryout, 24 hours at 70°C (158°F)
3.2.7.1	Volume change, pct., max.
	cross-section:	0.066 to 0.110	-8	-4
		Over 0.110	-5	-1

	Fluid Aging, IRM 903 Oil				D471
3.2.8	70 hours at 150°C (302°F)				D1414
3.2.8.1	Hardness change, pts., Shore A		-25 to 0	-4
3.2.8.2	Volume change, pct.		15 to 35	22

	Heat Aging				D573
3.2.9	70 hours at 100°C (212°F)				D1414
3.2.2.1	Hardness change, pts., Shore A		0 to 10	6
3.2.2.2	Tensile strength change, pct., max.		-25	2
3.2.2.3	Ultimate elongation change, pct., max.		-40	-19
3.2.2.4	Bend (flat)		No Cracking/Checking	No Cracking/ Checking

	Compression Set,				D395
3.2.10	70 hours at 125°C (257°F)				Method B
	pct. of original deflection, max.				D1414
	cross-section:	0.066 to 0.110	85	65
		Over 0.110	75	54

	Low Temperature Resistance				Para.
3.2.11	Brittlepoint				4.6.2
	Fluid Aging, ASTM Reference Fuel B
	70 hours at 23°C (73°F)
	Then in ASTM Reference Fuel A
	70 hours at 23°C (73°F)
	Refrigerate, 5 hours at -40°C (-40°F)		Pass	Pass