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National Stock Number:
2925-01-525-2892
Federal Supply Class:
2925
National Item Identification Number:
015252892
Description:
IGNITER,SPARK,GAS TURBINE ENGINE
Detail:
An item having one or more electrodes arranged to form an air gap across which an electric spark is introduced and discharged to ignite fuel and air mixture in an internal combustion engine for the purpose of initial starting only. In engines designed for the single electrode type, two plugs are required within the combustion chamber in proper placement to effect the air gap. An igniter plug differs from a spark plug by always having cooling facilities in the form of holes or slots in the plug casing to allow entry of air currents around the electrode(s). Excludes SPARK PLUG; GLOW PLUG and ELECTRODE.
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Manufacturer Information:
| 3119400-01 | 00198 | PRATT & WHITNEY CANADA CORP | | CH34659-3 | 71379 | CESSNA AIRCRAFT COMPANY | | CH34659-3 | 7EK50 | TEXTRON AVIATION INC | | CH34659-3 | 94988 | COOPER INDUSTRIES INC CHAMPION AVIATION PRODUCTS |
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Techincal Specification:
| LENGTH | 5.066 INCHES MINIMUM AND 5.116 INCHES MAXIMUM | | PLUG DESIGN | STRAIGHT | | PRECIOUS MATERIAL | SILVER | | PROPRIETARY CHARACTERISTICS | PACS | | MOUNTING FACILITY THREAD SIZE | 0.750-20 | | MOUNTING METHOD | THREAD | | SPECIAL FEATURES | PART NAME ASSIGNED BY CONTROLLING AGENCY - IGNITER ASSEMBLY; WIDTH MEASURED ACROSS FLATS OF HEXAGON; ALL EXTERNAL THREADS ARE SAME SIZE AND CLASS 3A; SILVER PLATING PER AMS2410 IS LOCATED FROM THREADED END UP 2.300 INCHES INCLUDING THREADS - EXCLUDING AREA WITH WAVE BAKE REQUIREMENTS; STEM LENGTH FROM HEXAGON MINIMUM 4.275 TO MAXIMUM 4.305 INCHES; OUTSIDE DIAMETER AT END OF STEM MINIMUM 0.495 TO MAXIMUM 0.505 INCH; FOUR 0.125 INCH DIAMETER HOLES EQUALLY SPACED AROUND STEM DIAMETER; GAP APPROXIMATELY 0.035 INCH | | WIDTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
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