PFPE Grease Aerospace MIL‑PRF‑27617 Type III Lubricant 1

PFPE Grease Aerospace MIL‑PRF‑27617 Type III Lubricant 2

PFPE Grease Aerospace MIL‑PRF‑27617 Type III Lubricant 3

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

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Performance characteristics

✅ 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

Performance characteristics

Item	Specification
Model	YBS-240AC
Base Oil	PFPE Perfluoropolyether
Thickener	PTFE
NLGI Grade	2
Working Temp	‑34°C ~ 288°C (peak 399°C)
Standard	MIL‑PRF‑27617 Type III
Certification	NSF‑H1
Pack Size	1 KG

The above data are typical values for the current product. The data for each batch of products in the future may fluctuate.

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

Oxygen‑Service System

High-temp Food Machinery

Chemical Industry

Aerospace Equipment

PFPE Grease Aerospace MIL‑PRF‑27617 Type III Lubricant 9

Operating 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.