A-A-52421 Accessory Kit; Warning Device, Demountable, For Emergency VehiclesThis CID covers a 14 volt and 28 volt demountable warning device consisting of a support bar and brackets for rain gutter mounting and gutterless mounting of two rotating warning lights, speaker, electrical harness, electronic siren and public address (P/A) system with microphone for use on security and other emergency vehicles having 12 or 24 volt electrical systems. The accessory kit and its associated hardware is referred to herein as "warning kit".

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A-A-52421A(AT)

tolerances using conversion tables contained in the latest revision of IEEE/ASTM-SI10, and all other requirements of this CID are met. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances specified in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable. The contracting officer has the option of accepting or rejecting the product.

6.6 Key words.

Rotating lights

Electronic siren

Public address system