MCM Electronics

Replacement O Ring 2 pcsMCM Part #: 21-8242  |  Tenma Part #: 21-8242

No reviews yet!
Login to rate or review this product

Replacement "O" Ring(set of two)
Replacement "O" rings for the Tenma Model 21-8240 Desoldering Iron.

Product Reviews

  • Rate It!
    Be the first to rate this product!

    Login Here to rate and review this product.

Associated Products

Image of Flux Pen #186

21-2265 - Flux Pen #186

Kester 186 rosin flux has been developed for use in critical applications where difficult assemblies are to be soldered, but process requirements stipulate use of Type RMA flux. This flux possess high thermal stability for soldering multi-layer assemblies which re...

In Stock

$6.69

Buy Now
Image of Tip Cleaner

21-4355 - Tip Cleaner

Cleans tip quickly without reducing tip temperatureCleans better than conventional spongesMay also be used as portable soldering pencilholder Non-skid base

In Stock

$7.49

Buy Now

Others Also Bought

Image of Replacement Tip for 21-8240

21-8241 - Replacement Tip for 21-8240

Replacement Tip Replacement desoldering iron tip for the Tenma Model 21-8240 Desoldering Iron.

In Stock

$1.49

Buy Now
Image of Vacuum Desoldering Iron

21-8240 - Vacuum Desoldering Iron

Vacuum Desoldering Iron Allows single-handed desoldering of connections, PC boards and components. Spring-loaded plunger and 30W heating element removes most board level components quickly and safely. Easily disassemble for fast cleaning, tip and "O" ring replace...

In Stock

$17.29

Buy Now
Image of DeoxIT D5 Spray Contact Cleaner, 5% solution, 5 oz.

200-040 - DeoxIT D5 Spray Contact Cleaner, 5% solution, 5 oz.

Fast acting deoxidizing solution cleans, improves conductivity, lubricates & protects. DeoxIT contact cleaner dissolves oxides and sulfides that form on metal surfaces. This restores the contact’s integrity and leaves a thin microscopic layer that protects t...

In Stock

$11.99

Buy Now
Sale Price:
$0.99 
Qty.Volume Price
10+$0.59
or Notify me when in stock
Notify me when in stock
Send me promotional emails
Package Specifications & Dimensions
Weight:0.1 lbs.
Hazardous:No
Warranty:365 days
Need to Return?
Length:2 in.
Width:1 in.
Height:1 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 1161

MCM Cat 56, Page 976

Mfr. Info

Tenma Logo
Mfr. Name:Tenma
Mfr. Part Number:21-8242