MIL-PRF-46176B, PERFORMANCE SPECIFICATION: BRAKE FLUID, SILICONE, AUTOMOTIVE, ALL-WEATHER, OPERATIONAL AND PRESERVATIVE (10-JAN-2001) [SUPERSEDING MIL-B-46176A]

MIL-PRF-46176B, PERFORMANCE SPECIFICATION: BRAKE FLUID, SILICONE, AUTOMOTIVE, ALL-WEATHER, OPERATIONAL AND PRESERVATIVE (10-JAN-2001) [SUPERSEDING MIL-B-46176A]., This specification covers silicone-based hydraulic brake fluid for use in hydraulic brake systems at ambient temperatures ranging from +55 DEG C to -55 DEG C. The fluid is identified by military symbol BFS and NATO code No. H-547 (see 6.1). The brake fluid covered by this specification is military unique due to the requirement that it perform at a minimum ambient temperature of -55 DEG C, whereas commercial silicone-based brake fluids are rated at a minimum ambient temperature of -40 DEG C. It is intended for use as an operational fluid and preservative fluid in automotive hydraulic brake systems at ambient temperatures ranging from 55 DEG C to -55 DEG C and fluid temperatures ranging from 205 DEG C to -55 DEG C.