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		                        | National Stock Number:
 5985-00-439-8242
 
 Federal Supply Class:
 5985
 
 National Item Identification Number:
 004398242
 
 Description:
 SEAL,WAVEGUIDE
 
 Detail:
 An item or assembly designed to be fitted into or external to the end of a waveguide, in order to prevent the entrance of moisture or other foreign matter, without appreciably attenuating radio frequencies. May or may not be pressure proof.
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 Manufacturer Information:
 
 | 8172157 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | 
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 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY SINGLE FLANGE |  | MATERIAL | PLASTIC SINGLE SEAL |  | SEAL INSIDE DIAMETER | 0.809 INCHES NOMINAL |  | SEAL OUTSIDE WIDTH | 1.270 INCHES NOMINAL |  | STYLE DESIGNATOR | FOR ROUND WAVEGUIDE AND RECTANGULAR FLANGE | 
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