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Resistors
We have hundreds of thousands of 1/4 watt resistors which we will send an assortment of (100) 1/4 watt resistors of at least (10) different ohm ratings. All have two axial leads, and 5% tolerance. Don't miss out! This is to cheep to pass up.
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21970 ASSORTED RESISTORS |
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Lazy Scott Bearings
Never seemed fair to nail the "lazy" tag so permanently on the "Susans" but that probably has no "bearing" on the issue. Also called turntable bearings, they are the square, flat ball bearing devices YOU bolt between two flat objects to achieve rotation. Like that spinning center section of a Chinese restaurant table. We had these in surplus once and they were quite popular. To our chagrin, we discovered they could be bought commercially for the same price. So we did. The 4" version is rated for a 300lb. load, the 6" for 500lbs., and the 12" (round) for 1000lbs.
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21992 LAZY SCOTT BEARING, 12" | |
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2934 LAZY SCOTT BEARING, 4" | |
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21995 LAZY SCOTT BEARING, 6" |
First Surface Mirrors
Optical imaging folk insist that their reflective surfaces be on top of the glass, because an optically minor “ghost” is created with back surface mirrors. These “First Surface” optical mirrors generally also have better glass and flatter surfaces than their household brethren. Delicate, with the fragile reflective surface exposed, they carry the prices that precision demands. If you are playing with lasers, photography or optical alignment, the first surface items below are what you need. Dimensions are included in the description as width x length x thickness, all in mm.
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69134 MIRROR, FS, 1.5 X 1.5 X 1 | |
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68361 MIRROR, FS, 77 X 194 X 3 | |
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68677 MIRROR, FS, 79 X 140 X 2.8 |
Right Angle Driver
Direct that power right where you want it. Inside the metal box are a couple of gears and shafts, what counts, though, is the way it lets you turn a shaft at a 90° angle, with no loss of power. 1/4" splined shaft couplings, male at one end and female at the other. 2" x 1-3/4" x 1" thick overall.
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27440 RIGHT ANGLE DRIVE |
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Battery Tester
Knowledge is power - in this case, battery power. You'll know from the easy-to-read gauge on this black-plastic handheld mini-tester whether a battery is good, low or needs to be replaced. The 4-1/4" x 2-3/8" x 1" testor reads "AAA," "AA," "C," "D," 9 volt, 1.5 volt button, and other sizes.
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91981 BATTERY TESTER |
Gear Up
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Or gear down-for the science fair or for any number of hobby projects. This hard-to-find set of (3) combination spur/beveled gears-for when you want gears set either straight or at 90° to one another-also has one small spur gear, plus three bushings. All in red, green, or blue plastic (we'll pick). The combo-beveled gears are 1-5/8", 1-1/4" and 27/32" dia with 3/16" bores to accept the bushings, which are 3/16" OD, 3/32" ID. The straight gear is 17/32" dia with a 1/16" half-bore. All are 24 pitch.
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92657P1 GEAR SET | |
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92657P10 GEAR SET (10) PACK SAVINGS | |
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92657P30 GEAR SET CLASSROOM PACK SAVINGS |
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Squeeze 'n' Squirt
Inside the lab, it's a standard translucent-white, LDPE-plastic wash bottle, 500ml/16oz, measuring 2-3/4" dia x 6-3/4 tall with a screwcap and a right-angle, 5/16" dia nozzle. Outside the lab, it's so pleasing to squeeze and squirt with that some of us keep them in the kitchen.
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92961 WASH BOTTLE |
Why Resist?
When you could just order this 480-pack of 1/4 watt, 5%-tolerance resistors. You'll get (30) pieces each of 10, 22, 47, 100, 220, 470, 1K, 2.2K, 4.7K, 10K, 22K, 47K, 100K, 220K, 470K, and 1M OHM.
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93191 480 RESISTORS |
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Why Resist?
When you could just order this 480-pack of 1/4 watt, 5%-tolerance resistors. You'll get (30) pieces each of 10, 22, 47, 100, 220, 470, 1K, 2.2K, 4.7K, 10K, 22K, 47K, 100K, 220K, 470K, and 1M OHM.
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93191 480 RESISTORS |
Add-A-Tread
And save someone's neck. This deeply textured safety tread is diamond-plate-pattern black rubber, 17" x 3-7/8" x 1/4" thick, with a peel-off self-adhesive back. It can be cut, but won't easily crack or tear. A great way to add traction to truck bumpers, RV steps, ladder steps, etc.
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93119 SELF ADHESIVE RUBBER STAIR TREAD |
Button, Button...
who's got the button? You do, which means you don't have to go the drugstore when your watch, calculator, camera, radio or nearly anything else stops. Be prepared for electronic quitters with this 30-pack of button cell batteries in the most popular sizes. Our each is (6) AG1, (6) AG3, (6) AG4, (3) AG5, (3) AG12, and (6) AG13 batteries. (Some devices may call these G1, G2, etc., or have other arcane codes for these same sizes.) Brand new!
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93241 ASST. BATTERIES |
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