Could be Pulse Repetition Frequency
Actually it is a bit more mundane, it is PReFerred, as in the Preferred number. It replaces an entire list of previous prefix's to military numbers such as C for Connector, R for Resistor, W for Wire, etc.
An example:
MIL-PRF-27/356C succeeds MIL-T-27/356B and is the specification for:
Transformers AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE), INDUCTORS, POWER, TF5S04ZZ
Performance, If it's mil-dtl, it's detail
It's the standard oil used by the military for Gas Turbine Engines typically found in aircraft.
Military Performance Specification 81733 Revision D
It is the Military Preference 23699. Just a type of turbine engine oil. What the actual numbers mean I am not sure. Just numbers I believe. as all types of Oils and preservatives in the military carry a MIL spec but can be made by different manufactures but have to meet that specific standard.
Answer: PRF (Personnel Readiness File/Folder) files are used in technical application and are not likely to be accessed by your average PC user. In general, PRF files are Windows system files, although they have other technical applications as well.
"Mil" stands for thousandths of an inch in measurements.
.mil stands for military. It Is The Highly trusted domain.
It means specifications.
.mil stands for military top-level domain name
PRF jitter refers to the variations in the Pulse Repetition Frequency (PRF) of a radar system, which can affect the accuracy and reliability of target detection due to timing inconsistencies. In contrast, PRF stagger involves intentionally varying the PRF in a systematic manner to enhance target detection and reduce clutter by avoiding the creation of predictable patterns that could be exploited by adversaries. While jitter introduces random fluctuations, stagger is a controlled technique used for operational advantage.
MS 6395 is a military specification for lubricating oils used in aviation and ground equipment. Oils that meet this specification typically include synthetic or mineral-based formulations designed for high-performance applications, such as MIL-PRF-7808 for turbine engine oils and MIL-PRF-46170 for other lubricants. Specific brands and products may vary, so it's essential to refer to the latest military specifications or manufacturer data sheets for compliant oils. Always ensure the chosen oil meets the required performance and environmental standards for your specific application.
Pro-Seal 870 is a Corrosion Inhibitive Sealant built to meet MIL-PRF-81733D Classification. It is a is a two-part, manganese dioxide cured polysulfide compound. It's also known as BMS 5-95