NSN 2990-00-386-2907, 2990003862907 Details - Valve Poppet Engine Parts List

Item Name Valve Poppet Engine
Federal Supply Group (FSG) Engine Accessories
Federal Supply Class (FSC) 2990 Miscellaneous Engine Accessories Nonaircraft
National Item Identification Number (NIIN) 00-386-2907 (003862907)
NCB Code USA (00)

Technical Characteristics of NSN 2990003862907

MRCCriteriaCharacteristic
AASKHEAD STYLEFLAT
AASUHEAD HEIGHT0.1540 INCHES NOMINAL
AATECHAMFER ANGLE IN DEG45.0
AAZPCHAMFER LENGTH0.0312 INCHES NOMINAL
ABKVOUTSIDE DIAMETER1.7500 INCHES NOMINAL
AJFYSEAT ANGLE IN DEG45.0
ALYXSTEM STYLEDOUBLE GROOVED
ALYZCARBON RELIEF GROOVENOT INCLUDED
ALZBNECK RADIUS0.3125 INCHES NOMINAL
ALZDSTEM LENGTH6.8740 INCHES NOMINAL
ALZESTEM DIAMETER0.3720 INCHES NOMINAL
ALZHDISTANCE FROM FIRST GROOVE TO STEM END0.3700 INCHES NOMINAL
ALZJDISTANCE FROM SECOND GROOVE TO STEM END0.5250 INCHES NOMINAL
ALZLFIRST GROOVE DIAMETER0.3125 INCHES NOMINAL
ALZNSECOND GROOVE DIAMETER0.3125 INCHES NOMINAL
ALZQFIRST GROOVE WIDTH0.0625 INCHES NOMINAL
ALZRSECOND GROOVE WIDTH0.0625 INCHES NOMINAL
ANNQIII MATERIAL AND LOCATIONSTEEL OVERALL
FEATSPECIAL FEATURES0.095 IN. LG,0.517 IN. DIA SHOULDER ON STEM 5.750 IN. FROM TIP END

  Relevant Components for NSN - 2990-00-386-2907, 2990003862907

2910-00-001-3841 (2910000013841) 2910-00-001-3856 (2910000013856) 2910-00-001-3873 (2910000013873) 2910-00-001-3875 (2910000013875)
2910-00-001-6116 (2910000016116) 2910-00-001-6176 (2910000016176) 2910-00-001-7736 (2910000017736) 2910-00-001-7829 (2910000017829)
2910-00-001-9024 (2910000019024) 2910-00-001-9030 (2910000019030) 2910-00-001-9042 (2910000019042) 2910-00-001-9050 (2910000019050)

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