PFPE Grease Aerospace MIL‑PRF‑27617 Type III Lubricant

Oxygen-Compatible NSF-H1 High-Temperature PFPE Lubricant

YBS-240AC is military‑spec PFPE grease thickened with PTFE, qualified to MIL‑PRF‑27617 Type III, oxygen‑system compatible and NSF‑H1 registered. Operating range ‑34°C‑288°C, non‑flammable, chemically inert, ultra‑low outgassing. Ideal for aerospace bearings, oxygen‑service seals, high‑vacuum semiconductor parts and corrosive chemical valves. Original 1kg packaging available, high‑performance alternative is also supplied.

Model:

YBS-240AC



✅ MIL‑PRF‑27617 Type III aerospace military specification

✅ Oxygen‑system compatible, non‑ignition risk

✅ Temp range: ‑34°C ~ 288°C (short‑term peak 399°C)

✅ NSF‑H1 for incidental food contact

  • Chemically inert, resistant to acids, alkalis & solvents

    ✅ Ultra‑low outgassing for high‑vacuum service

    ✅ PTFE‑thickened PFPE base oil, long service life

Application And Packaging Specifications

  • Aerospace Equipment: Aircraft instrument bearings, threaded fittings, O‑ring seals

  • Oxygen‑Service System: Valves, seals and components exposed to high‑purity oxygen

  • Chemical Industry: Corrosive media valves, pump seals, flange fittings

  • Semiconductor High‑Vacuum: Vacuum‑chamber moving bearings and sealing parts

  • High‑temp Food Machinery: Food‑processing equipment under extreme thermal conditions


Bright living room with modern inventory
Bright living room with modern inventory

OpOperating Precautions

Store sealed in cool, dry ventilated location, avoid heat and direct sunlight. Never mix with other greases or oils; mixing will degrade performance. Thoroughly clean all components before applying grease. Wear gloves; avoid prolonged skin / eye contact.

How To Use

■ Clean gears and remove old lubricant before application.
■ Apply grease evenly to gear teeth and contact surfaces.
■ Use an appropriate amount to ensure full coverage without excess.
■ Apply manually or through a lubrication system.
■ Run equipment at low speed after application to ensure proper distribution.

Contact Us

Contacts: Sales Department

E-mail: info@ybslube.com

Tel: +86-13192083114

WhatsApp: +86-18934578611

ADD: Building 15, No. 142, Jinghai West Road, Chang'an Town, Dongguan City, Guangdong Province, China

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