A reference guide listing cross‑reference data for Skydrol hydraulic fluids, seals, O‑rings and related aerospace products.
The Skydrol Cross Reference Manual compiles military specifications, NSN numbers, and product equivalents for a wide range of hydraulic fluids, lubricants, seals and O‑rings used in aerospace and industrial applications. It includes technical data such as service temperature ranges, part numbers and compatibility notes.
The guide also provides information on related products like hydraulic filters, corrosion‑inhibitive sealants, flow meters and Skydrol‑compatible gauges, helping engineers select the correct material for their systems.
| Service temperature range (PR 1776M sealant) | 65 °F (18 °C) to 250 °F (121 °C) |
|---|---|
| NSN for Skydrol 500B4 | 9150‑01‑056‑4883 |
| Service temperature range (P S 870 sealant) | 65 °F (18 °C) to 250 °F (121 °C) |
It operates from 65 °F (18 °C) up to 250 °F (121 °C) with limited excursions to 360 °F (182 °C).
The NSN for Skydrol 500B4 is 9150‑01‑056‑4883.