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


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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