9266-75 Fluorocarbon Seals

Need O-rings for AMS 7276 Tomorrow?

Datwyler is committed to being the leading supplier of O-rings for AMS 7276. Seals made from our popular 75-durometer fluorocarbon 9266-75 have outstanding physical properties and are competively priced.

9266-75 Meets Your Needs

1. Exceeds AMS 7276

Datwyler O-rings made from our 75-durometer fluorocarbon compound 9266-75 exceed the requirements of AMS 7276. Our compound is also on the Department of Defense Qualified Products List (QPL). Datwyler supplies seals to 28 military and aerospace specifications. Our quality system is certified to ISO 9001, ISO/TS 16949, AC7115, and AS9100. So when you specify 9266-75, rest assured that you’ve made the right choice.

2. Excellent Resistance to Compression Set

To peform properly, most seals must resist taking a set from compression after being installed. When a seal takes a set, it no longer exerts force on the mating surfaces, resulting in leakage. A compound with low compression set, like 9266-75, better maintains its elastomeric properties and original thickness, preserving seal integrity. Seals made from Datwyler’s 9266-75 compound provide excellent resistance to compression set. After testing 9266-75 for 22 hours at 392°F, it had a compression set of only 3 percent.

3. Huge Inventory

We carry more than 2 million pieces of 9266-75. And we stock all 369 standard sizes. We’ve also made it easy to check stock 24 hours a day using our web site. If we receive your order before 2:30 p.m. Pacific time, you can receive your parts as soon as the next business day.

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

Chemical Resistance
USE WITHDO NOT USE WITH
Carbon Tetrachloride
Diester Synthetic Lubricants
Gasoline
Toluene
Acetone
Amines
Ethyl Acetate
Hot Air

Typical Values for Compound 9266-75
75-durometer fluorocarbon for AMS 7276
Section of Spec.Physical PropertyRequirementTypical ValueASTM
Test Method

Z1

Z2
Z3
Z4		Original Properties
Hardness, Shore A
Tensile strength, MPa (psi), min.
Ultimate elongation, pct., min.
Modulus at 100 pct. elongation, psi
Specific gravity
75 ± 5
10.0(1450)
150
Report
Report
73
13.2(1911)
164
986
1,85
D2240
D412
D412
D412
D297

Basic		Fluid Aging, IRM 903 Oil
70 hours at 150°C (302°F)
Volume change, pct., max.

10

2
D471

A1-10		Heat Aging
70 hours at 250°C (482°F)
Hardness change, pts., Shore A, max.
Tensile strength change, pct., max.
Ultimate elongation change, pct., max.

10
-25
-25

4
7
13
D573

A1-11		Heat Aging
70 hours at 275°C (527°F)
Hardness change, pts., Shore A
Tensile strength change, pct., max.
Ultimate elongation change, pct., max.

-5 to 10
-40
-20

5
-18
34
D573
B14Compression Set, Plied
22 hours at 200°C (392°F)
pct. of original deflection, max.

15

3		D395
Method B

EF31		Fluid Aging, ASTM Reference Fuel C
70 hours at 23°C (73°F)
Hardness change, pts., Shore A
Tensile strength change, pct., max.
Ultimate elongation change, pct., max.
Volume change, pct.

±5
-25
-20
0 to 10

-1
16
16
3
D471

EO88		Fluid Aging, Hatco 7700
70 hours at 200°C (392°F)
Hardness change, pts., Shore A
Tensile strength change, pct., max.
Ultimate elongation change, pct., max.
Volume change, pct., max.

-15 to 5
-40
-20
25

-11
2
25
18
D471

Z5		Low Temperature Resistance
TR-10, °C (°F)
Report
-17(1)
D1329

Z6		Differential Scanning Calorimetry
Glass Transition, Midpoint °C (°F)
Report
-16(3)
D3418

CONCLUSION:
Compound 9266-75 meets the requirements of ASTM D2000 M6HK710 A1-10 A1-11 B38 EF31 EO88 Z1 Z2 Z3 Z4 Z5 Z6.


ASTM is the acronym for the American Society for Testing and Materials.
IRM is the acronym for Industry Reference Material.

Source: Test Report 1213B.