73-20-05
Figure 2 Reduction Gearbox, Externals, P3 Tubes And Filters
Graphic
  Fig. Item Part No. Airline Part No. Nomenclature Effect Code Units Per Assy.
—
 1
 
REDUCTION GEARBOX, EXTERNALS, P3 TUBES AND FILTERS
SEE 72-00-00 FIG.1 FOR NHA
A,B,C,D,E
 REF
—
 10
3018217
  
▪ TUBE ASSEMBLY, P3 AIR PRESSURE
   PRE-SB5100
   PRE-SB5174
A
 1
  10A
3023718
  
▪ TUBE ASSEMBLY, P3 AIR PRESSURE
FOR PT6T-3 ENGINES BUILT TO BS420, BS432, BS449, BS560, BS1052
FOR PT6T-3B ENGINES BUILT TO BS427, BS556, BS867, BS1053, BS1186
FOR PT6T-3BE ENGINES BUILT TO BS769, BS770, BS882, BS883
FOR PT6T-3BF ENGINES BUILT TO BS1059, BS1062
FOR PT6T-3BG ENGINES BUILT TO BS1058
   POST-SB5100
   PRE-SB5174
NONINTR WITH P/N 3031042
A,B,C,D,E
 1
  10B
3031042
  
▪ TUBE ASSEMBLY, AIR PRESSURE, P3
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 1
—
 20
MS9825-03
  
▪ CLAMP ASSEMBLY, LOOP
INTRCHG WITH P/N 3004359
A
 1
  20A
3004359
  
▪ CLAMP ASSEMBLY, LOOP, 0.250 DIA CUSHION
A,B,C,D,E
 1
       
ATTACHING PARTS

    
—
 30
3013513
  
▪ BOLT, MACHINE, DBL HEX, 0.190-32UNJF X 0.500 LG
INTRCHG WITH P/N MS9914-06
A
 1
  30A
MS9914-06
  
▪ BOLT, MACHINE, DBL HEX
A,B,C,D,E
 1
  40
3016606
  
▪ NUT OPTION (IC)
SEE TABLE FOR OPTIONAL PART NUMBERS
A,B,C,D,E
 1
       
------*------
    
—
 50
MS9592-214
  
▪ BRACKET, ANGLE, 90-DEG
   PRE-SB5100
   PRE-SB5174
NONINTR WITH P/N MS9592-054
A
 1
  50A
MS9592-054
  
▪ BRACKET, ANGLE, 90-DEG
   POST-SB5100
   POST-SB5174
SEE 72-10-00 FIG.1 FOR NHA
A,B,C,D,E
 1
  60
3023726
  
▪ HOUSING, P3 VALVE
   POST-SB5100
A,B,C,D,E
 1
  70
3023725
  
▪ SPRING, FINGER VALVE, P3
   POST-SB5100
A,B,C,D,E
 1
  80
3023724
  
▪ TUBE ASSEMBLY, P3 VALVE
   POST-SB5100
A,B,C,D,E
 1
—
 81
3019190
  
▪ TEE ASSEMBLY, AIR METERING, P3 LINE
   PRE-SB5100
NONINTR WITH P/N 3023721
A
 2
  81A
3023721
  
▪ TEE ASSEMBLY, AIR METERING, P3 LINE
   POST-SB5100
A,B,C,D,E
 2
  82
MS9100-04
  
▪ NUT, DRILLED, HEX
A,B,C,D,E
 2
  83
MS9058-04
  
▪ RING, BACK-UP
A,B,C,D,E
 2
—
 84
3016996
  
▪ PACKING, PREFORMED, 0.362 ID X 0.103
INTRCHG WITH P/N ST3001-110
A
 2
  84A
ST3001-110
  
▪ PACKING, PREFORMED
A,B
 2
—
 84B
AS3209-110
  
▪ PACKING, PREFORMED
A,B,C,D,E
 2
  90
3016184
  
▪ TUBE ASSEMBLY, P3 AIR PRESSURE
A,B,C,D,E
 1
  100
3023724
  
▪ TUBE ASSEMBLY, P3 VALVE
   POST-SB5100
A,B,C,D,E
 1
  110
3023725
  
▪ SPRING, FINGER VALVE, P3
   POST-SB5100
A,B,C,D,E
 1
  120
3023726
  
▪ HOUSING, P3 VALVE
   POST-SB5100
A,B,C,D,E
 1
—
 130
3018219
  
▪ TUBE ASSEMBLY, P3 AIR PRESSURE
   PRE-SB5100
   PRE-SB5174
NONINTR WITH P/N 3023720
A
 1
  130A
3023720
  
▪ TUBE ASSEMBLY, P3 AIR PRESSURE
FOR PT6T-3 ENGINES BUILT TO BS420, BS432, BS449, BS560, BS1052
FOR PT6T-3B ENGINES BUILT TO BS427, BS556, BS867, BS1053, BS1186
FOR PT6T-3BE ENGINES BUILT TO BS769, BS770, BS882, BS883
FOR PT6T-3BF ENGINES BUILT TO BS1059, BS1062
FOR PT6T-3BG ENGINES BUILT TO BS1058
   POST-SB5100
   PRE-SB5174
NONINTR WITH P/N 3031040
A,B,C,D,E
 1
  130B
3031040
  
▪ TUBE ASSEMBLY, AIR PRESSURE
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 1
—
 140
MS9825-03
  
▪ CLAMP ASSEMBLY, LOOP
INTRCHG WITH P/N 3004359
A
 1
  140A
3004359
  
▪ CLAMP ASSEMBLY, LOOP, 0.250 DIA CUSHION
A,B,C,D,E
 1
       
ATTACHING PARTS

    
—
 150
3013513
  
▪ BOLT, MACHINE, DBL HEX, 0.190-32UNJF X 0.500 LG
INTRCHG WITH P/N MS9914-06
A
 1
  150A
MS9914-06
  
▪ BOLT, MACHINE, DBL HEX
A,B,C,D,E
 1
  160
3016606
  
▪ NUT OPTION (IC)
SEE TABLE FOR OPTIONAL PART NUMBERS
A,B,C,D,E
 1
       
------*------
    
—
 170
MS9592-214
  
▪ BRACKET, ANGLE, 90-DEG
   PRE-SB5100
   PRE-SB5174
NONINTR WITH P/N MS9592-374
A
 1
  170A
MS9592-374
  
▪ BRACKET, ANGLE, 90-DEG
FOR PT6T-3 ENGINES BUILT TO BS420, BS432, BS449, BS560, BS1052
FOR PT6T-3B ENGINES BUILT TO BS427, BS556, BS867, BS1053, BS1186
FOR PT6T-3BE ENGINES BUILT TO BS769, BS770, BS882, BS883
FOR PT6T-3BF ENGINES BUILT TO BS1059, BS1062
FOR PT6T-3BG ENGINES BUILT TO BS1058
   POST-SB5100
   PRE-SB5174
NONINTR WITH P/N MS9592-054
A,B,C,D,E
 1
  170B
MS9592-054
  
▪ BRACKET, ANGLE, 90-DEG
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
SEE 72-10-00 FIG.1 FOR NHA
A,B,C,D,E
 1
—
 180
MS9825-03
  
▪ CLAMP ASSEMBLY, LOOP
INTRCHG WITH P/N 3004359
A
 1
  180A
3004359
  
▪ CLAMP ASSEMBLY, LOOP, 0.250 DIA CUSHION
A,B,C,D,E
 1
       
ATTACHING PARTS

    
—
 190
3013513
  
▪ BOLT, MACHINE, DBL HEX, 0.190-32UNJF X 0.500 LG
INTRCHG WITH P/N MS9914-06
A
 1
  190A
MS9914-06
  
▪ BOLT, MACHINE, DBL HEX
A,B,C,D,E
 1
  200
3016606
  
▪ NUT OPTION (IC)
SEE TABLE FOR OPTIONAL PART NUMBERS
A,B,C,D,E
 1
       
------*------
    
  210
MS9592-130
  
▪ BRACKET, ANGLE, 90-DEG
   PRE-SB5174
NONINTR WITH P/N MS9592-210
A
 1
—
 210A
MS9592-210
  
▪ BRACKET, ANGLE, 90-DEG
FOR PT6T-3 ENGINES BUILT TO BS420, BS432, BS449, BS560, BS1052
FOR PT6T-3B ENGINES BUILT TO BS427, BS556, BS867, BS1053, BS1186
FOR PT6T-3BE ENGINES BUILT TO BS769, BS770, BS882, BS883
FOR PT6T-3BF ENGINES BUILT TO BS1059, BS1062
FOR PT6T-3BG ENGINES BUILT TO BS1058
   POST-SB5162
NONINTR WITH P/N MS9592-048
A,B,C,D,E
 1
  210B
MS9592-048
  
▪ BRACKET, ANGLE, 90-DEG
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 1
  220
3031038
  
▪ TUBE ASSEMBLY, AIR PRESSURE, P3
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 1
  230
3031036
  
▪ TUBE ASSEMBLY, AIR PRESSURE, P3
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 1
  240
MS9195-04
  
▪ ELBOW, TUBE-TO-BOSS, 45-DEG
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
  250
MS9194-04
  
▪ ELBOW, TUBE, ANGLE, 90-DEG
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
  260
MS9100-04
  
▪ NUT, PLAIN, HEX
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 4
  270
MS9058-04
  
▪ RING, BACK-UP
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 4
  280
ST3002-04
  
▪ PACKING, PREFORMED
   POST-SB5174
INTRCHG WITH P/N AS3208-04
A,B,C,D,E
 4
—
 280A
AS3208-04
  
▪ PACKING, PREFORMED
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
A,B,C,D,E
 4
  290
3030293
  
▪ HOUSING ASSEMBLY, COMPRESSOR AIR FILTER
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
       
ATTACHING PARTS

    
  300
MS9914-10
  
▪ BOLT, MACHINE, DBL HEX
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 4
  310
MS9321-09
  
▪ WASHER, FLAT
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 4
  320
3016606
  
▪ NUT OPTION (IC)
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
SEE TABLE FOR OPTIONAL PART NUMBERS
   POST-SB5174
A,B,C,D,E
 4
       
------*------
    
  330
3024603
  
▪ TUBE, TRANSFER, FLANGED
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
  340
3029488
  
▪ PACKING, PREFORMED,
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
 0.560
   POST-SB5174
A,B,C,D,E
 2
  350
3029268
  
▪ FILTER ELEMENT OPTION (IC)
   PRE-SB5174
INTRCHG WITH P/N 3032247
(IC) CONSISTS OF:
A,B
 2
   
3028856
  
▪▪ FILTER ELEMENT, COMPRESSOR AIR
REF
   
3029267
  
▪▪ FILTER ELEMENT, COMPRESSOR AIR
REF
   
3059786-01
  
▪▪ FILTER ELEMENT, AIR, CLEANABLE
REF
—
 350A
3032247
  
▪ FILTER ELEMENT, COMPRESSOR AIR
   POST-SB5174
   PRE-SB5248
INTRCHG WITH P/N 3035725
A,B
 2
—
 350B
3035725
  
▪ FILTER ELEMENT OPTION (IC)
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5248
(IC) CONSISTS OF:
A,B,C,D,E
 2
   
3032247
  
▪▪ FILTER ELEMENT, COMPRESSOR AIR
REF
   
3108939-01
  
▪▪ FILTER ELEMENT, COMPRESSOR AIR
REF
  360
ST3001-126
  
▪ PACKING, PREFORMED
   POST-SB5174
INTRCHG WITH P/N AS3209-126
A,B,
 2
—
 360A
AS3209-126
  
▪ PACKING, PREFORMED
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
A,B,C,D,E
 2
—
 360B
MS9386-126
  
▪ PACKING, PREFORMED
A,B,C,D,E
 2
  370
3029266
  
▪ COVER, COMPRESSOR, AIR FILTER
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
  380
3030291
  
▪ BRACKET, SUPPORT
FOR PT6T-3B ENGINES BUILT TO BS835
FOR PT6T-3BF ENGINES BUILT TO BS1060, BS1061
FOR PT6T-3BG ENGINES BUILT TO BS1063
   POST-SB5174
A,B,C,D,E
 2
Note 1:
 DELETED
— ITEM NOT ILLUSTRATED
EFF MODEL
A PT6T-3
B PT6T-3B
C PT6T-3BE
D PT6T-3BF
E PT6T-3BG