1、MIL-F-1972Y (1) 10 m 9797706 03OSZ8 2 E MIL-F-19924 (Nord) AMENDMENT - 1 e 5 Februars 1958 MILITARY SPECIFICATION FEED MECHANISMS, 20MM, MARK 7 MODS O AND 2 This anendment forms a part of Military Specification MIL-F- Page 10 paragraph 4.3.2.13 - Delete in its entirety and 19924(NOrd), dated 19 June
2、 1957. substitute the following: 4.3.2.13 Feed Mechanisms Mark 7 Mod 2. - 4.3.2.13.1 Insulation and circuit-resistance test. - Feed The circuit shall have a resistance of not less than -volt Bridge- a 500 mechanisms Mark ( Mod 2 shall b e tested with Megger for insulation and circuit resistance as f
3、ollcws: 500 megohms with the valve stem “out“ when leads of the megger are connected between pin A and pin B of the switch (see BUORD d=.awing No. 1411272). than 500 Megohms with the valve stem a. I b. Resistance to ground of pin A.and pin B shall not be less , and with valve stem “out . 4.3.2.13.2
4、Continuity test. - The resistance between pin A and pin B of the swltch (see BUORD drawing 1411272), when valve stem is “in“, shall not be more than 3 ohms when checked with an ohmmeter or a Wheatstone bridge. DO NOT DESTROY MIL-F-l9924(NOrd) FSC i005 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
