6 V car lighter socket, SAE J563 (Ø21.4 mm) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/6v-car-socket-sae-j563/  (sheet CC BY 4.0)
Basis: Secondary source: Wikipedia (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 21.4, width 21.4
- ANSI/SAE J563 gives the receptacle bore as 21.34–21.46 mm and the plug body as 21.08–21.23 mm. The 6 V socket is used in older 6-volt vehicles.
- Numbers come from a Wikipedia summary of SAE J563, not the paid standard itself.
- No CAD file: the maker publishes only overall sizes, and a plain box or cylinder is not useful design geometry. The table is the published data; parts with real geometry have their own pages.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

dimension  value
Receptacle inner diameter  21.34–21.46 mm (median 21.4 mm)
Plug body diameter  21.08–21.23 mm (median 21.16 mm)
Standard  ANSI/SAE J563
Depth  not published

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Automobile auxiliary power outlet (ANSI/SAE J563 dimensions) — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/Automobile_auxiliary_power_outlet

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=6v-car-socket-sae-j563