MIL-PRF–87257C

MIL - PRF – 87257C, PERFORMANCE SPECIFICATION: HYDRAULIC FLUID, FIRE RESISTANT, LOW TEMPERATURE, SYNTHETIC HYDROCARBON BASE, AIRCRAFT AND MISSILE
[SUPERSEDING MIL-PRF-87257C]

This specification covers characteristics and requirements of a synthetic hydrocarbon hydraulic fluid for use in the -54 °C to +200 °C temperature range in aircrafts, automatic pilots, shock absorbers, brakes, flap-control mechanisms, missile hydraulic servo-controlled systems, and other hydraulic systems using synthetic sealing material.

This hydraulic fluid is identified by NATO Code No. H-538