~............................................................................... | TABLE I | | CROSS REFERENCE OF TUBING TO BMS/MIL SPECIFICATION | ................................................................................. | TUBING MATERIAL | BMS | MIL | OTHER | ................................................................................. |ALUMINUM 6061-T4, 6061-T6 | ---|WW-T-700/6 *[1]| ---| | | | T-7081 | AMS 4083 | ................................................................................. |CRES 21-6-9 | 7-185 | ---| ---| ................................................................................. |1/8 HARD CRES 304-1/8h | ---| T-6845 | AMS 5566 | ................................................................................. |ANNEALED CRES 304 | ---| T-8504 | AMS 5567 | ................................................................................. |ANNEALED CRES 321 | ---| T-8808 | AMS 5556 | | | | | AMS 5557 | ................................................................................. |TITANIUM 3AL-2.5V | 7-234 | ---| AMS 4945 | 2............................…...................…...............…..............1
 *[1] LOW PRESSURE, NON-HYDRAULIC SYSTEMS ONLY
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A
737-300/400/500MAINTENANCE MANUAL
 ~.............................................................................. | Table IA | | Approved Tube Materials | ................................................................................ | | Tube Size | 04 | 06 | 08 | 10 | 12 | 16 | ................................................................................ |Tube |21-6-9 CRES | 0.016 | 0.020 | 0.026 | 0.033 | 0.039 | 0.052 | |Material |(BMS 7-185) | | | | | | | | ...................................................................... | |3AL-2.5V | 0.016 | 0.019 | 0.026 | 0.032 | 0.039 | 0.051 | | |Titanium | | | | | | | | |(AMS 4945) | | | | | | | | ...................................................................... | |304 1/8 | 0.020 | 0.028 | 0.035 | 0.049 | 0.058 | 0.065 | | |Hard CRES | | | | | | | | |(MIL-T-6845) | | | | | | | | ......................................................................
 |  |6061-T6  | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
 |  |Aluminum  |  |  |  |  |  |  |
 |  |(MIL-T-7081  |  |  |  |  |  |  |
 |  |or AMS 4083)  |  |  |  |  |  |  |
 |  |Return/Supply/|  |  |  |  |  |  |
 |  |Suction Only  |  |  |  |  |  |  |

 2.........…..............…........…........…........…........…........…........1
 NOTE: CONSULT BOEING BEFORE USING ALTERNATE TUBE MATERIAL/WALL THICKNESS
____ COMBINATIONS FOR 3000 PSI HYDRAULIC SYSTEM APPLICATIONS
 TASK 20-10-51-308-133
 2. Tube Repair
___________
 A. General
 (1)  Use Hydraulic System Design Pressure/IN PSI/ as shown in Table 2 during repairs.
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A 737-300/400/500MAINTENANCE MANUAL
 ~............................................................................... | TABLE 2 | | HYDRAULIC SYSTEM DESIGN PRESSURES | ................................................................................. | COMPONENT | Maximum Working | Proof | Burst | | | Pressure | Pressure | Pressure | | | psi | psi | psi | ................................................................................. |Pressure lines (including | | | | |hoses and fittings) and | | | | |units with air under full | | | | |system pressure (such as | | | | |accumulators). | 3000 | 6000 | 12000 | ................................................................................. |Return and case drain lines,| 600 | 900 | 1500 | |fittings and units | | | | ................................................................................. |Return line hoses | 600 | 1500 | 3000 | ................................................................................. |Pump Supply reservoirs, | 65 | 100 | 200 | |units, lines and fittings | | | | ................................................................................. |Airbleed Line (Upstream of | | | | |regulator) | 250 | 500 | 1000 | ................................................................................. |Drains and vents open to | | | | |atmosphere | 15 | 50 | 75 | 2............................…...................…...............…..............1
　
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