From: hp_agilent_equipment@yahoogroups.com on behalf of
microwaveengineer1968 [microwaveengineer1968@***.com]
Sent: Sunday, November 04, 2007 1:50 PM
To: hp_agilent_equipment@yahoogroups.com
Subject: [hp_agilent_equipment] HP Step Attenuator parts explained !

As a public service im posting some common part numbers and explanation on here:

5086-2379 10dB Pad used in 8495/96 $18
5086-2380 20dB Pad "         "     $17
5180-2720 40dB Pad "         "     $31
5021-4575 Contact (this is the little contact tongue thats actuated by the pushrods )  10dB  $3.50
5021-4577 Contact 20dB $3.50
5021-4579 Contact 40dB $3.50
5040-6975 Support 3 section (this is the plastic rail that holds all the contacts and bypasses) $8.50
5060-0342 o-ring (the little rubber rings on the pushrods) $9
5021-4592 Bypass 40dB (bypass are the little metal contacts mounted on the support below the contacts) $4 08495-20010 bypass 10dB $5
08497-20001 bypass 20dB $4

i have added the current agilent price to each part all parts are currently available from Agilent, if you have a attenuator or any equipment that uses one you should think about getting a small stockpile of the pads and contacts, you never know how long they stay 
reasonable like that