concentric ring for sale, brand-new and used.

Etalon mounted with silicone to ring shaped substrate. I thought this was a wave plate but had no polarity marking. Tested it for an Etalon and saw the concentric rings.

You are bidding on ( 1 ) new Concentric 1DBD3, 1830487, 2.318 cu in, 7/8" Shaft Hydraulic Gear Pump P/N 1830487 Series - 1DBD3 Displacement - 2.318 cu in Mounting - SAE B 2 Bolt Shaft - 7/8" x 1 5/8" Keyed Rotation - CW Ports - Inlet - 1 5/8"-12, Outlet 1 5/16"-12 SAE O-Ring Min Speed - 700 rpm / Max Speed - 3000 rpm Max Flow 17.3 gpm (cont) / 33.9 gpm (interm) Max Differential Pressure 4000 psi\ FREE SHIPPING in the USA only. We use Ebay Shipping Calculator to figure our shipping.

.............This is a Peak scale lupe, with focusing ring............It has a plastic case and Lighted Holder, that I personally used through-out my career as a tool grinder...........Still as nice as when I bought it....Model # 1983.................There are a total of 5 different reticles scales ...........My name is on the case and the Lighted Holder......... The tolerance for reticles is ± 0.05mm for the total measuring range of the reticle……….The reticles numbers are 1 5 7 8 and 12……..

Ingersoll-Rand Operation and Maintenance Instructions for Type-30 Concentric Ring Valve Compressor Model 30T: Air Compressor Form Number SCD-312 You are bidding on A COPY of the manual shown in the photo. (Loc.4338)(Inv.15325)

*************Buy 2 get 1 FREE************** Buy 2 cd titles through the auction or fixed price format listings and during the check-out process send a message to request a free CD title of your choice. ***************************************** Can't wait for auction to end? We have this item with buy-it-now option in our ebay

Item Description This Ebay listing is for the sale of a CD ROM publication of a beginner's decorative metalwork instructions manual originally published in 1894 In the late 1800’s there was excitement and enthusiasm to take the crafts and technologies and knowledge of the diverse nations and cultures that had come before and forge them into a rational, perhaps even scientific approach to educating a new generation

SHARS CNC CAT 40 ER16 ER 16 Proj (L) :5" Mini Nose Collet Chuck Tool Holder .0001"Runout NEW Quality Guarantee Product Code 202-1468 Product description Taper: CAT40 Draw Bar Thread: 5/8" -11

SHARS CAT40 ER32 COLLET CHUCKS CAT 40 ER 32 4 CHUCKS PACKAGE NEW SHARS Brand Quality 100% Guaranted! Product Code 202-1456G (4 PCS) Product description Taper: CAT40

SHARS ISO 30 ER16 Collet Chuck Tool Holder Balanced to 20,000 RPM Product Code 202-5980 Product description Taper: ISO30 Rear Thread Size: M12 x 1.75 Collet Series: ER16 Range: 1/32-3/8" Projection (L): 100mm Nose Diameter: 28mm Runout: .0001" Balanced to 20,000 RPM

A Division of Vertex Industries, Inc.

ZEISS 39 25 60 STANDARD RA (SEE DISCRIPTION) MICROSCOPE W COVER 4X REVOLVING NOSEPEICE CENTERABLE CONDENSER CARRIER FOR KOEHLER ILLUMINATION. 47 34 28 NECHANICAL STAGE WITH CONCENTRIC CONTROL KNOBS ON EITHER SIDE--CONDESER WITH SWING-OUT TOP LENS 0.9NA 47 30 14 BINOCULAR HEAD 1.25 X-

CMS6600B EMG/EP System

Features of the SL-1400 Slit Lamp ? Galilean Optical System ? Tower Illumination ?