21O7312 This Item Up For Offer is a US NAVY SUBMARINES AIREX P/N 265102703 FAN VENTILATION ISOLATING MOUNTING RING ( 2 ) STEEL PLATED RINGS WITH A NON METALLIC RED RUBBER MATERIAL IN BETWEEN 3.865" DIA. 3.245" ID. .300" OA THICK WITH .100" WIDE SOFT RED RUBBER MATERIAL IN BETWEEN RINGS ( 2 ) .135" ID. SCREW HOLES IN BOTTOM RING AND ( 2 ) .220" HOLES IN TOP RING Condition New and Unused, From Surplus Old Stock. Made in the USA by AIREX CORP..
NOTE: TINKERERS, INVENTORS AND MECHANICS, IF YOU CAN USE THIS ITEM IN YOUR NEXT PROJECT, FEEL FREE TO MAKE AN OFFER ON ALL, OR A LESSER AMOUNT. DON'T LET THE PRICE SCARE YOU. I MIGHT SAY YES.
I WELCOME YOUR INTEREST IN THIS ONE, AND ALL MY OTHER ITEMS.