BOMwiki the bill-of-materials encyclopedia
30,441,950 parts mapped · 192,925 items

This page is machine-generated and unverified (what this means). Treat details as provisional. If you know this hardware, weigh in or correct it directly with Edit.

Discussion History

Second-Stage Tank

Assembly

Common-bulkhead tank stacking LOX above RP-1 behind a single insulated dome, saving an interstage’s worth of length and mass. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Second-Stage Tank parts and their functions

5 top-level parts · 150,019 parts in total · full bill of materials below
Second-Stage Tank parts diagram: 1 tank barrel panel, 2 tank dome, 3 slosh baffle, 4 structural fastener, 5 pressure sensor. 150,019 parts in 5 assemblies.
Second-Stage Tank parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Tank Barrel Panel 4× Machined Al-Li isogrid panel, friction-stir welded to its neighbours to form a barrel section.
2 Tank Dome 3× Two ends plus common bulkhead
3 Slosh Baffle 8× Ring baffle that damps propellant slosh modes which would otherwise couple into the control loop.
4 Structural Fastener 150000× Internal hardware fastening
5 Pressure Sensor 4× Transduces fluid or gas pressure into an electrical signal.

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model — STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Second-Stage Tank

5 top-level lines · 5 rows shown · 150,019 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Tank Barrel Panel orbital-launch-vehicle-tank-barrel-panel 4× 4 · part
2 Tank Dome orbital-launch-vehicle-tank-dome 3× 3 · part
3 Slosh Baffle orbital-launch-vehicle-slosh-baffle 8× 8 · part
4 Structural Fastener orbital-launch-vehicle-structural-fastener 150000× 150,000 · part
5 Pressure Sensor pressure-sensor 4× 4 · part

Where the second-stage tank is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Second Stage

Sourcing: possible vendors

Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
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