# Pelvis Parts

> Identify and count pelvis parts, hip actuators, and mounting hardware.

- Page: https://docs.menlo.ai/asimov/1/build/assembly-preparations/part-organisation/pelvis
- Section: Asimov › Asimov 1 › Assemble Asimov 1 › Preparation › Module Checklists

This checklist covers everything you need to assemble the pelvis: main parts, actuators, and fasteners. Cables are counted together in the [Cables](https://docs.menlo.ai/asimov/1/build/assembly-preparations/part-organisation/cables.md) checklist.

Pelvis checklist: 13 required rows. Quantities are derived from the assembly instructions, not a shipping manifest. "Used in" links the assembly steps that use each item.

## Main Parts

Manufactured and bought-in parts for this module. Find the full quantity of each row.

| Part / specification | Qty | Used in |
| - | -: | - |
| ASV1_200_01C | 1 | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md) |
| ASV1_200_02A | 1 | [Step 3](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-3.md) |
| ASV1_200_03A | 1 | [Step 2](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-2.md) |
| ASV1_200_04B | 1 | [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| ASV1_200_05B | 1 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md) |
| ASV1_200_06C | 1 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md) |
| ASV1_200_07C | 1 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md) |
| ASV1_200_08C | 1 | [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| ASV1_200_09C | 1 | [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| ASV1_200_15C | 1 | [Step 4](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-4.md) |
| ASV1_200_16A | 1 | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md) |

## Actuators

Match each actuator by model and by the ID on its numbered label.

| Part / specification | Qty | Details | Used in |
| - | -: | - | - |
| EC-A6416-P2-25 actuator (ID 23 + 1 + 7) | 3 | ID 23: Waist Yaw (part `200_10X`); ID 1: Left Hip Pitch (part `200_11X`); ID 7: Right Hip Pitch (part `200_12X`) | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md), [Step 2](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-2.md), [Step 3](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-3.md) |
| EC-A5013-H17-100 actuator (ID 2 + 8) | 2 | ID 2: Left Hip Roll (part `200_14X`); ID 8: Right Hip Roll (part `200_13X`) | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md), [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |

## Fasteners (optional)

Optional to count: bolts, nuts, washers, and standoffs ship in labelled bags or compartments and do not count towards checklist progress.

| Part / specification | Qty | Used in |
| - | -: | - |
| M3x8 Flat bolt | 4 | [Step 4](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-4.md) |
| M4x6 Socket bolt | 12 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md), [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| M4x8 Socket bolt | 6 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md), [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| M4x10 Flat bolt | 20 | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md), [Step 2](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-2.md), [Step 3](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-3.md) |
| M4x12 Socket bolt | 12 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md), [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| M4x14 Socket bolt | 6 | [Step 5](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-5.md), [Step 6](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/right-and-left-hip-roll/step-6.md) |
| M4x16 Flat bolt | 16 | [Step 2](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-2.md), [Step 3](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-3.md) |
| M4x18 Socket bolt | 8 | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md) |
| M4 nylon-insert locknuts | 16 | [Step 2](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-2.md), [Step 3](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-3.md) |
| M4 square nuts | 8 | [Step 1](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/pelvis/step-1.md) |
| M5x25 Socket bolt | 10 | [Step 7](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/attach-left-and-right-legs/step-7.md), [Step 8](https://docs.menlo.ai/asimov/1/build/assembly-steps/pelvis-module/attach-left-and-right-legs/step-8.md) |

[All module checklists](https://docs.menlo.ai/asimov/1/build/assembly-preparations.md) · [Next: Left Arm Module](https://docs.menlo.ai/asimov/1/build/assembly-preparations/part-organisation/left-arm.md)