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MIL-DTL-25988/2A
Rubber, Fluorosilicone, Elastomer, Oil- and Fuel-Resistant, O-Rings, Class 3
This specification sheet describes a standardized part numbering system for the procurement of Fluorosilicone Elastomer Rubber Oil and Fuel Resistant O-Rings, Class 3, intended for use in packing glands as specified in MIL-G-5514.
Department of Defense [dod]