It stands for Military Standard, which means the part has been both tested and certified by US Armed Forces and has met or exceeded such standards. Pretty cool, huh? If the military approves then so do we and so will you. MS21919WCH8's are silicone cushioned loop clamps, 1/2" in diameter and made of corrosion resistant steel (CRES). These clamps are designed to easily encapsulate tubes or wires. With two round holes at each end, these clamps are closed with a bolt during assembly so that a proper closing is furnished to the task at hand.
Tongue Hole Type: Round, Unthreaded
Cushioning Environmental Protection: Corrosion Resistant And Weather Resistant And Oil Resistant
Overall Width: 0.375 Inches Nominal
Diameter: 0.199 Inches Minimum And 0.209 Inches Maximum
Material Thickness: 0.032 Inches Nominal
Center To Center Distance Between Loop And Mounting Hole: 0.639 Inches Minimum And 0.669 Inches Maximum
Distance From Loop Center To Tongue End: 0.842 Inches Nominal
Loop Inside Diameter: 0.485 Inches Minimum And 0.515 Inches Maximum
Material: Steel Comp 321 Band
Material: Rubber Silicone Class Q Cushion
Material Document And Classification: AMS3303 Assn Std Single Material Response Cushion
Material Document And Classification: MIL-S-6721 Mil Spec Single Material Response Band
Surface Treatment: Passivate Band
Surface Treatment Document And Classification: QQ-P-35 Fed Spec Single Treatment Response Band
Style Designator: Offset Mount
Test Data Document: AS21919WCH8 Specification (Includes Engineering Type Bulletins, Brochures,Etc., That Reflect Specification Type Data In Specification Format; Excludes Commercial Catalogs, Industry Directories, And Similar Trade Publications, Reflecting General Type Dataon Certain Environmental And Performance Requirements And Test Conditions That Are Shown As "Typical", "Average", "Nominal", Etc.).
Specification/Standard Data: 81343 - AS21919WCH8 Professional/Industrial Association Specification
This is nearly identical to my first pilot logbook, but with a new smooth matte black cover. This logbook checks all the boxes from student pilot through Commercial. It might just be the only logbook you’ll ever need. Fly safe!
