Recently Updated NSN 2990-01-250-5631 Or (2990012505631) Part List

Item Name Muffler Exhaust
Federal Supply Group (FSG) Engine Accessories
Federal Supply Class (FSC) 2990 Miscellaneous Engine Accessories Nonaircraft
National Item Identification Number (NIIN) 01-250-5631 (012505631)
NCB Code USA (01)
Manufacturer Fairbanks Morse Llc, Coltec Industries Inc, Coast Guard Yard Uph, Burgess Manning Inc
Part Number Manufacturer Item Name RFQ
11-911-103 fairbanks morse llc muffler exhaust RFQ
11-911-103 coltec industries inc muffler exhaust RFQ
140WTGB10013 coast guard yard uph muffler exhaust RFQ
SPECIAL 16 DPSS burgess manning inc muffler exhaust RFQ

Technical Characteristics of NSN 2990012505631

MRCCriteriaCharacteristic
ABHPOVERALL LENGTH108.000 INCHES NOMINAL
ACQWINLET CONNECTION TYPEFLANGE SINGLE INLET
ADAVOVERALL DIAMETER40.000 INCHES NOMINAL
AJLWOUTLET INSIDE DIAMETER16.000 INCHES NOMINAL 1ST OUTLET16.000 INCHES NOMINAL
APGFDESIGN TYPEJACKETED
ARNDMUFFLER DESIGNANY ACCEPTABLE
ARNGBODY SHAPEROUND
ARNHOPERATING POSITIONVERTICAL
ARNJINLET LOCATIONCENTRALLY LOCATED IN END SECTION OF BODY SINGLE INLET
ARNKINLET PROJECTION LENGTH3.440 INCHES NOMINAL SINGLE INLET3.440 INCHES NOMINAL
ARNLINLET FLANGE SHAPEROUND SINGLE INLET
ARNMINLET FLANGE MOUNTING PROVISION AND QUANTITY16 HOLES SINGLE INLET16 HOLES
ARNNINLET FLANGE MOUNTING HOLE DIAMETER1.125 INCHES NOMINAL SINGLE INLET1.125 INCHES NOMINAL
ARNTINLET FLANGE MOUNTING PROVISION SPACING1.328 IN. C TO C DIM. OF MTG HOLES SINGLE INLET
ARSQINLET OUTSIDE DIAMETER23.500 INCHES NOMINAL SINGLE INLET23.500 INCHES NOMINAL
ARTEINLET INSIDE DIAMETER16.000 INCHES NOMINAL SINGLE INLET16.000 INCHES NOMINAL
ARTHOUTLET CONNECTION TYPEFLANGE 1ST OUTLET
ARTJOUTLET LOCATIONCENTRALLY LOCATED IN END SECTION OF BODY 1ST OUTLET
ARTKOUTLET PROJECTION LENGTH3.440 INCHES NOMINAL 1ST OUTLET3.440 INCHES NOMINAL
ARTLOUTLET FLANGE SHAPEROUND 1ST OUTLET
ARTMOUTLET FLANGE MOUNTING PROVISION AND QUANTITY16 HOLES 1ST OUTLET16 HOLES
ARTNOUTLET FLANGE MOUNTING HOLE DIAMETER1.125 INCHES NOMINAL 1ST OUTLET1.125 INCHES NOMINAL
ARTTOUTLET FLANGE MOUNTING PROVISION SPACING1.328 INS. C TO C DIM. OF MTG HOLES 1ST OUTLET
ARWAOUTLET OUTSIDE DIAMETER23.500 INCHES NOMINAL 1ST OUTLET23.500 INCHES NOMINAL
FEATSPECIAL FEATURESINCLUDED AS AN INTEGRAL PART OF THE MUFFLER IS A DPSS SPARK ARRESTOR
MATTMATERIALSTEEL

Relevant Components for NSN - 2990-01-250-5631, 2990012505631
2910-00-362-6680 (2910003626680) 2930-00-364-9190 (2930003649190) 2930-00-657-6128 (2930006576128) 2995-01-313-0691 (2995013130691)
2915-00-931-5119 (2915009315119) 2920-01-448-1346 (2920014481346) 2910-01-684-5450 (2910016845450) 2930-01-389-2291 (2930013892291)
2910-00-605-5306 (2910006055306) 2910-01-546-5626 (2910015465626) 2920-01-644-6835 (2920016446835) 2910-00-214-6784 (2910002146784)

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