Military Specification Pulleys

Military Specification Pulleys for Aerospace Applications

This product line represents pulleys manufactured with the highest quality materials and subjected to the most stringent requirements of performance testing. We source military specification pulleys only from qualified producers, overseen by the United States Military and qualified to certify each and every pulley they ship. We then incorporate the peak performance of military specification pulleys into your application, and provide rugged and dependable engineered solutions that ensure a long service life.    

Pulleys for Aircraft
Aerospace Pulleys MIL-DTL-7034
Aircraft Control Pulley MIL-DTL-7034
MIL- DTL- 7034 Specification pulleys

All Pulleys Conform to MIL-DTL-7034

All military specification (mil-spec) pulleys conform to MIL-DTL-7034 (latest rev). We offer the industry’s leading products for use in a variety of applications and these pulleys are no different. Military specification pulleys are used in primary and secondary flight control systems, and will exceed the performance of commercial pulleys in many applications. When quality and performance matter, trust Loos and Company to provide the highest quality mil-spec pulleys.

Department of Defense Specifications

  • MIL-DTL-7034/1 – Cross Reference MS20219 (superseded AN219): Pulley, Groove, Secondary Control, Aircraft
  • MIL-DTL-7034/2 – Cross Reference MS20220 (superseded AN220): Pulley, Groove, Flight Control, Aircraft
  • MIL-DTL-7034/3 – Cross Reference MS20221: Pulley, Groove, Secondary Control, Aircraft
  • MIL-DTL-7034/4 – Cross Reference MS24566 (superseded AN210B): Pulley, Control, Anti-friction Bearing, Aircraft
Aerospace Pulleys MIL-DTL-7034

Military Specification Series Pulleys

The tables below represents standard materials, constructions, and sizes that we offer. If you don’t see what you are looking for, contact a sales representative for assistance. As a manufacturer, we are fully capable of making custom products to meet your performance requirements. 

ODIR
OD
IR
WIDTH
GROOVE
DIA
CABLE
SIZE
BORE
DIA
PULLEY ASSEMBLY MAX WEIGHT (LBS)ALLOWABLE LOAD ON PULLEY (LBS)MAX LIMIT LOAD ON CABLE INDEPENDANT OF WRAP ANGLEITEM #
1/8″ CABLE5/32″ CABLE
1.3120.423 0.4381.00 1/16″
5/32″
0.2500.058480307460Non-metallic
MS20219-1
Metallic
MS20219A1
1.7500.4230.4381.4381/16″
5/32″
0.2500.066480307460Non-metallic
MS20219-2
Metallic
MS20219A2
1.7500.7690.4381.4381/16″
5/32″
0.625 0.096480307460Non-metallic
MS20219-3
Metallic
MS20219A3
2.6250.4260.4382.3121/16″
5/32″
0.2500.110480307460 Non-metallic
MS20219-4
Metallic
MS20219A4
2.6250.7690.4382.3121/16″
5/32″
0.625 0.125480307460 Non-metallic
MS20219-5
Metallic
MS20219A5
Pulley | Groove | Secondary Control | Aircraft
Measurements in inches unless noted

ODIR
OD
IR
WIDTH
GROOVE
DIA
CABLE
SIZE
BORE
DIA
PULLEY ASSEMBLY MAX WEIGHT (LBS)ALLOWABLE LOAD ON PULLEY (LBS)MAX LIMIT LOAD ON CABLE INDEPENDANT OF WRAP ANGLEITEM #
1/8″ CABLE5/32″ CABLE3/16″ CABLE
1.7500.4550.6251.7501/8″
5/32″
3/16″
0.31250.07050030710401250Non-metallic
MS20220-1
Metallic
MS20020A1
3.0000.4550.6253.0001/8″
5/32″
3/16″
0.31250.175168030710401250Non-metallic
MS20220-2
Metallic
MS20020A2
4.2500.4550.6254.2501/8″
5/32″
3/16″
0.31250.260250030710401250Non-metallic
MS20220-3
Metallic
MS20220A3
5.5000.4550.6255.5001/8″
5/32″
3/16″
0.3125 0.370250030710401250Non-metallic
MS20220-4
Metallic
MS20220A4
Pulley | Groove | Secondary Control | Aircraft
Measurements in inches unless noted
ODIR
OD
IR
WIDTH
GROOVE
DIA
CABLE
SIZE
BORE
DIA
PULLEY ASSEMBLY MAX WEIGHT (LBS)ALLOWABLE LOAD ON PULLEY (LBS)MAX LIMIT LOAD ON CABLE INDEPENDANT OF WRAP ANGLEITEM #
3/16″ CABLE7/32″ CABLE1/4″ CABLE
2.6250.4550.6252.0003/16″
7/32″
1/4″
0.31250.1652500262030603500 Non-metallic
NA
Metallic
MS20221A1
4.1250.7680.7503.5003/16″
7/32″
1/4″
0.5000.4504900262030603500 Non-metallic
MS20221-2
Metallic
MS20221A2
5.625 0.7680.7505.0003/16″
7/32″
1/4″
0.5000.4507000262030603500Non-metallic
MS20221-3
Metallic
MS20221A3
Pulley | Groove | Secondary Control | Aircraft
Measurements in inches unless noted
ODIR
WIDTH
BORE DIACABLE
SIZE
GROOVE
DIA
GROOVE RADIUSWIDTH @ FLANGE POINTSFLANGE THICKNESSPULLEY ASSEMBLY WT (LBS)ALLOWABLE LOAD ON PULLEY (LBS)ITEM #
1.2500.2970.1901/16″
3/32″
0.9720.050
+0.000
-0.003
0.250
+0.000
-0.003
0.060
+-0.005
0.026300MS24566-1B
2.5000.2970.1901/16″
3/32″
0.2220.112
+0.000
-0.003
0.250
+0.000
-0.003
0.060
+-0.005
0.075500MS24566-2B
2.0000.4840.2501/8″
5/32″
3/16″
1.5100.112
+0.000
-0.005
0.422
-0.000
-0.012
0.086
+-0.006
0.090600MS24566-3B
3.5000.4840.2501/8″
5/32″
3/16″
3.0100.112
+0.000
-0.003
0.422
-0.000
-0.012
0.086
+-0.006
0.2001200MS24566-4B
5.0000.6200.3753/16″
7/32″
1/4″
4.3740.145
+0.000
-0.005
0.507
+0.000
-0.014
0.092
+-0.007
0.5003000MS24566-5B
6.0000.6200.3753/16″
7/32″
1/4″
5.3740.145
+0.000
-0.005
0.507
+0.000
-0.014
0.092
+-0.007
0.6604000MS24566-6B
Pulley | Groove | Secondary Control | Aircraft
Measurements in inches unless noted

Mil-Spec Pulleys deserve Mil-Spec Cables

One good turn deserves another, and choosing the right cable for use with Mil-Spec pulleys will ensure a long life for your investment. Visit our Wire Rope and Cables Page to view our selection of stock military specification cable products. If you need to engineer a complete pulley system, our engineers would be more than happy to walk you through selecting the right combination of cable and pulleys. 

military specification pulleys
MIL-DTL-83420 stainless and galvanized military specification available bare and jacketed - from stock

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Complete the quotation request below for current price and lead time.   

Why Buy from ESheaves?

  • 30 years experience supplying the industry
  • Wide variety of materials to select from
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