BOMwiki the bill-of-materials encyclopedia 29,759,735 parts mapped · 146,895 items

Reusable Booster Stage Assembly

First stage that burns for ~160 s, separates near 2 km/s, then flies itself back through entry and landing burns to touch down on four legs, carrying roughly ten tonnes of hardware that exists only for recovery. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Build & assembly graph

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Bill of materials

9 top-level lines · 108 rows shown · 1,210,766 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Reusable Booster Engine 9 parts reusable-launch-vehicle-engine 9 54,037 assembly
1.1 Turbopump 6 parts orbital-launch-vehicle-turbopump 9 55 assembly
1.1.1 Pump Impeller orbital-launch-vehicle-pump-impeller 18 · part
1.1.2 Pump Inducer orbital-launch-vehicle-pump-inducer 18 · part
1.1.3 Turbine Wheel orbital-launch-vehicle-turbine-wheel 9 · part
1.1.4 Ball Bearing ball-bearing 36 · part
1.1.5 O-Ring Set oring-set 54 · part
1.1.6 Fastener Set fastener-set 40× 360 · part
1.2 Thrust Chamber & Nozzle orbital-launch-vehicle-thrust-chamber 9 · part
1.3 Pintle Injector 5 parts reusable-launch-vehicle-pintle-injector 9 31 assembly
1.3.1 Pintle Post reusable-launch-vehicle-pintle-post 9 · part
1.3.2 Pintle Fuel Sleeve reusable-launch-vehicle-pintle-sleeve 9 · part
1.3.3 Injector Manifold reusable-launch-vehicle-injector-manifold 9 · part
1.3.4 O-Ring Set oring-set 36 · part
1.3.5 Fastener Set fastener-set 24× 216 · part
1.4 Gas Generator orbital-launch-vehicle-gas-generator 9 · part
1.5 Throttle Valve reusable-launch-vehicle-throttle-valve 9 · part
1.6 Engine Valve orbital-launch-vehicle-engine-valve 63 · part
1.7 Multi-Start Ignition System 4 parts reusable-launch-vehicle-multistart-ignition 9 10 assembly
1.7.1 TEA-TEB Ampoule reusable-launch-vehicle-teateb-ampoule 27 · part
1.7.2 Ignition Manifold reusable-launch-vehicle-ignition-manifold 9 · part
1.7.3 Propellant Valve orbital-launch-vehicle-propellant-valve 36 · part
1.7.4 Relay relay 18 · part
1.8 Engine Controller 5 parts orbital-launch-vehicle-engine-controller 9 1,846 assembly
1.8.1 Bare PCB pcb-bare 18 · part
1.8.2 Microcontroller mcu 18 · part
1.8.3 SMD Passive (R/C/L) smd-passives 1800× 16,200 · part
1.8.4 Connector connector 30× 270 · part
1.8.5 Pressure Sensor pressure-sensor 12× 108 · part
1.9 Engine Plumbing & Hardware 6 parts orbital-launch-vehicle-engine-plumbing 9 52,085 assembly
1.9.1 Engine Gimbal Actuator orbital-launch-vehicle-gimbal-actuator 18 · part
1.9.2 Torch Igniter orbital-launch-vehicle-igniter 18 · part
1.9.3 Engine Heat Exchanger orbital-launch-vehicle-heat-exchanger 9 · part
1.9.4 Engine Line orbital-launch-vehicle-engine-line 80× 720 · part
1.9.5 Brazed Joint orbital-launch-vehicle-brazed-joint 40000× 360,000 · part
1.9.6 Tube Fitting orbital-launch-vehicle-tube-fitting 12000× 108,000 · part
2 Booster LOX Tank (Subcooled) 5 parts reusable-launch-vehicle-lox-tank 1 180,026 assembly
2.1 Tank Barrel Panel orbital-launch-vehicle-tank-barrel-panel 8 · part
2.2 Tank Dome orbital-launch-vehicle-tank-dome 2 · part
2.3 Slosh Baffle orbital-launch-vehicle-slosh-baffle 12× 12 · part
2.4 Structural Fastener orbital-launch-vehicle-structural-fastener 180000× 180,000 · part
2.5 Pressure Sensor pressure-sensor 4 · part
3 Booster RP-1 Tank (Chilled) 5 parts reusable-launch-vehicle-rp1-tank 1 150,021 assembly
3.1 Tank Barrel Panel orbital-launch-vehicle-tank-barrel-panel 6 · part
3.2 Tank Dome orbital-launch-vehicle-tank-dome 2 · part
3.3 Slosh Baffle orbital-launch-vehicle-slosh-baffle 9 · part
3.4 Structural Fastener orbital-launch-vehicle-structural-fastener 150000× 150,000 · part
3.5 Pressure Sensor pressure-sensor 4 · part
4 Octaweb Thrust Structure 4 parts reusable-launch-vehicle-octaweb 1 300,035 assembly
4.1 Octaweb Web Member orbital-launch-vehicle-octaweb-member 8 · part
4.2 Engine Mount orbital-launch-vehicle-engine-mount 9 · part
4.3 TVC Actuator orbital-launch-vehicle-tvc-actuator 18× 18 · part
4.4 Structural Fastener orbital-launch-vehicle-structural-fastener 300000× 300,000 · part
5 Propellant Feed System 6 parts orbital-launch-vehicle-feed-system 1 2,461 assembly
5.1 Propellant Feed Line orbital-launch-vehicle-feed-line 4 · part
5.2 Propellant Valve orbital-launch-vehicle-propellant-valve 14× 14 · part
5.3 Pogo Accumulator orbital-launch-vehicle-pogo-accumulator 1 · part
5.4 Pressurization System 5 parts orbital-launch-vehicle-pressurization-system 1 38 assembly
5.4.1 COPV Pressure Vessel orbital-launch-vehicle-copv 4 · part
5.4.2 Pressure Regulator orbital-launch-vehicle-pressure-regulator 2 · part
5.4.3 Check Valve orbital-launch-vehicle-check-valve 6 · part
5.4.4 Helium Line orbital-launch-vehicle-helium-line 20× 20 · part
5.4.5 Pressure Sensor pressure-sensor 6 · part
5.5 Fill & Drain Valve orbital-launch-vehicle-fill-drain-valve 4 · part
5.6 Duct Flange Joint orbital-launch-vehicle-flange-joint 2400× 2,400 · part
6 Landing Gear Set 3 parts reusable-launch-vehicle-landing-gear 1 30,496 assembly
6.1 Landing Leg 5 parts reusable-launch-vehicle-landing-leg 4 22 assembly
6.1.1 Leg Telescoping Piston reusable-launch-vehicle-leg-piston 12 · part
6.1.2 Crush Core Cartridge reusable-launch-vehicle-crush-core 4 · part
6.1.3 Leg Latch Collet reusable-launch-vehicle-leg-latch 4 · part
6.1.4 Landing Footpad reusable-launch-vehicle-footpad 4 · part
6.1.5 Fastener Set fastener-set 16× 64 · part
6.2 Leg Deployment Pneumatics 3 parts reusable-launch-vehicle-leg-deploy-system 1 408 assembly
6.2.1 COPV Pressure Vessel orbital-launch-vehicle-copv 2 · part
6.2.2 Propellant Valve orbital-launch-vehicle-propellant-valve 6 · part
6.2.3 Duct Flange Joint orbital-launch-vehicle-flange-joint 400× 400 · part
6.3 Structural Fastener orbital-launch-vehicle-structural-fastener 30000× 30,000 · part
7 Grid Fin System 2 parts reusable-launch-vehicle-grid-fin-system 1 975 assembly
7.1 Titanium Grid Fin 5 parts reusable-launch-vehicle-grid-fin 4 17 assembly
7.1.1 Grid Fin Lattice Body reusable-launch-vehicle-fin-lattice 4 · part
7.1.2 Grid Fin Actuator reusable-launch-vehicle-fin-actuator 4 · part
7.1.3 Grid Fin Shaft reusable-launch-vehicle-fin-shaft 4 · part
7.1.4 Ball Bearing ball-bearing 8 · part
7.1.5 Fastener Set fastener-set 12× 48 · part
7.2 Fin Hydraulic Power Unit 5 parts reusable-launch-vehicle-fin-hydraulic-unit 1 907 assembly
7.2.1 Hydraulic Pump reusable-launch-vehicle-hydraulic-pump 1 · part
7.2.2 Hydraulic Reservoir reusable-launch-vehicle-hydraulic-reservoir 1 · part
7.2.3 Hydraulic Accumulator reusable-launch-vehicle-hydraulic-accumulator 1 · part
7.2.4 Duct Flange Joint orbital-launch-vehicle-flange-joint 900× 900 · part
7.2.5 Pressure Sensor pressure-sensor 4 · part
8 Booster Cold-Gas RCS 3 parts reusable-launch-vehicle-booster-rcs 1 355 assembly
8.1 Cold-Gas Thruster Pod 5 parts reusable-launch-vehicle-rcs-thruster-pod 2 164 assembly
8.1.1 Cold-Gas Thruster orbital-launch-vehicle-cold-gas-thruster 8 · part
8.1.2 Propellant Valve orbital-launch-vehicle-propellant-valve 8 · part
8.1.3 RCS Valve Driver Board 5 parts + deeper › reusable-launch-vehicle-rcs-valve-driver 2 132 assembly
8.1.4 O-Ring Set oring-set 16 · part
8.1.5 Fastener Set fastener-set 16× 32 · part
8.2 COPV Pressure Vessel orbital-launch-vehicle-copv 4 · part
8.3 RCS Distribution Manifold 5 parts reusable-launch-vehicle-rcs-manifold 1 23 assembly
8.3.1 Cold-Gas Pressure Regulator reusable-launch-vehicle-rcs-regulator 1 · part
8.3.2 Propellant Valve orbital-launch-vehicle-propellant-valve 2 · part
8.3.3 Pressure Sensor pressure-sensor 2 · part
8.3.4 O-Ring Set oring-set 6 · part
8.3.5 Fastener Set fastener-set 12× 12 · part
9 Re-entry Base Heatshield 3 parts reusable-launch-vehicle-base-heatshield 1 60,064 assembly
9.1 Heatshield Panel orbital-launch-vehicle-heatshield-panel 24× 24 · part
9.2 Engine Bay Thermal Blanket reusable-launch-vehicle-engine-bay-blanket 40× 40 · part
9.3 Structural Fastener orbital-launch-vehicle-structural-fastener 60000× 60,000 · part

Used in 1 assembly

Sourcing: likely vendors

Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks