Fuji NPS ergonomic spinning reel seat, size 18 (DNPSM18) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/fuji-nps-ergonomic-reel-seat-size-18/  (sheet CC BY 4.0)
Basis: Secondary source: Mud Hole Custom Tackle (Fuji US distributor) (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 21.0, width 21.0, height 151
- The NPS is Fuji's ergonomic pipe-style spinning seat; size 18 has a 18.0 mm bore and is 151 mm long, noticeably longer than the DPS of the same size.
- Two outside diameters are listed without explanation; the larger one is used as the envelope.
- Secondary source (Fuji US distributor).
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

dimension  value
Inside diameter  18.0 mm (0.709 in)
Outside diameters listed  21.0 mm / 20.0 mm
Length  151 mm (5.945 in)
Hood OD / weight  not published

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Mud Hole Custom Tackle (Fuji US distributor): Fuji Ergonomic Spinning Reel Seat NPS - size chart — web — Publisher's page; dimensions are facts — https://mudhole.com/en-ca/collections/vendors/products/fuji-ergonomic-spinning-seat-nps

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/fuji-nps-ergonomic-reel-seat-size-18/index.json
API: https://xemstudio.com/api/geometry?object=fuji-nps-ergonomic-reel-seat-size-18