TM T R E F E R E N C E C O D E 1 7 la 1 9 2 0 2 1 2 2 2 3 2 4 2 5 ii-4320-3X3-14 ii-4320-3X3-14 MAINTZNANCE (   1 (3) tl CATEGORY NOMENCLATURE F &lamp,     Fuel Line F Dial Gauge, Millimeter . F Testing Device F Depth Gauge F Retajning H  . I H I I Retajning    Bracket iston     Ring    Clamp amer, Valve Guide len    Socket,   6   mm S e c t i o n I V . kEM REFERENCE REMARKS CODE, A Pump   ahsembly      cannot   be   replaced   as    a required. B Repair     includes     replacing     valves,     val C Repair     includes     replacing     rod     bearing D Repair    by    welding    or    painting. r IAA (4) (5). IATIONAL STOCK TOOL NUMBER (NSN) NUMBER I 66838300 61208700 60462800 61311401 - 6 1 2 7 5 2 0 0 66634600 61210700 61209100 61209900 IKS n assembly. Disassembly is ve    seats,    and    guides. IS. B-8 ;. .' '2 I I