Mil spec electrolytic capacitors

Trying to figure out how to specify the caps that are in the parts drawer. They are clearly mil spec. MFR on the cases are Kemet, sometimes Sprague. Other numbers from the cases don't match any searches. One has a milspec part number M390006 on it.

What I have learned is:

Vishay does sell the M390006 ones:
http://www.vishay.com/docs/40022/40022.pdf

Sprague is now a subsidiary of Vishay. They sell caps very similar looking to the mil spec ones as series 150D which are "Hermetically Sealed" Tantalums. The datasheet says "The Military equivalent to the 150D is the CSR13 which is qualified to MIL-C-39003/01" The 150 series is available plentifully.

http://www.vishay.com/docs/40015/150d.pdf

CSR13 doesn't come up on many searches, and is apparently obsolete. However, I did find a Kemet datasheet which explains the numbering very clearly

http://www.kemet.com/kemet/web/homepage/kechome.nsf/file/Tantalum%20Hermetically%20Sealed-Axial%20Catalog/$file/F3100_TaHermSeal.pdf

Furthermore, after the first page of the above, there is an explanation of Kemet's newer numbering system, which is byzantine but the parts are available plentifully.

The difference between the M390003 and the M390006 is that the former is a solid tantalum, the latter a wet tantalum, as explained on the below surpluser's page. It appears that I have a bunch of the solid ones.

http://www.smcelectronics.com/milcap.htm

COTS Twinax connectors

While no longer looking for these, here are links to the most promising leads to BNC-sized COTS Twinax connectors:

These connectors from Blackbox, undoubably mfr'd by someone else, are compatible with an old IBM-style serial connector:

http://www.blackbox.com/Store/Detail.aspx/Twinax-Connector-Single/FD010 IBM part# 7362229

http://www.blackbox.com/Store/Detail.aspx/Twinax-Termination-Cap/FD115-R2 Termination cap. Note absolutely no info on what the termination resistance is.

http://www.blackbox.com/Store/Detail.aspx/Twinax-Bulkhead-Connector-Single/FD020 IBM part# 7362229

Amphenol makes a series as well which doesn't look too compatible with the above (but which is available through digikey):

http://drawings.amphenolrf.com//pdf/169.pdf

Digikey pages http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=ARFX1035-ND

How to pillage Glenair's next day stock

When ordering backshells from Glenair:

The rectangular backshell online catalog here has both D and MDM:

http://www.glenair.com/backshells/rectangular/index.html

each of which shows all of the models with pictures and links to the datasheets. Despite the simple model numbering format given on these top pages, some of these backshells have an actual part number xxx-yyy<+stuff>, while some have xxxTyyy<+stuff> where T is for top exit for wires. Plug the first part of the actual part number, not the simple model number, into the parts search here:

http://www.glenair.com/html/sameday.htm

which is also the 4th link down on the right of the company's home page, and get back exactly which part numbers (i.e. which options) are kept in stock. The home page also has a link to a page showing their distributors, the only recognizable ones of which are TTI (good web site) and Arrow (can only read their site with firefox).

Only a range of in stock part quantities is shown, and if you call glenair sales they still won't tell you exactly how many are in stock, but apparently no matter what there's only a 2-3 day lead time if it's on the list.