1 1/4 NPT Plugs, Stoppers, and Inserts

Finishing Plugs for Square Tubing -- FP-201
from Caplugs

FP Series finishing plugs are designed for square tubing. These plugs are sized for different gauges, their shoulders fit flush with tubing sides and keep dirt and moisture out of sensitive areas. Protect against sharp tube edges. Provide clean finish on completed products. Material: Low-Density... [See More]

  • NPT Thread: 1 1/4" NPT
  • Material: Polyethylene (PE)
EZP Series (NPT Plugs) -- EZP 157
from Daemar Inc.

These tapered plugs were designed to cap NPT fittings, but have a universal design ideal for a variety of applications. These durable, multi-use plugs have a flange for easy installation and removal. Material: Low-Density Polyethylene Colour: Orange [See More]

  • NPT Thread: 1 1/4" NPT
Nylon Hole Plug -- 8609 [8609 from Keystone Electronics Corp.]
from Heilind Electronics, Inc.

Type: Hole Plug. Style: Solid. Material: Nylon. Hole Diameter: 1.250 [31.8] [See More]

  • NPT Thread: 1 1/4" NPT
  • Material: Nylon
  • Shape / Application: Round
NPT Male Plug
from HydraCheck Inc.

For use with the Pressure/Leak, Hand-operated Pump. These HydraCheck pressure/leak test connectors are designed exclusively for pressure/leak testing components with NPT connectors – you are ready to test!. Comes with STAUFF Test 20 connector. [See More]

  • NPT Thread: 1/4" NPT; 3/8" NPT; 1/2" NPT; 3/4" NPT; 1" NPT; 1 1/4" NPT; 1 1/2" NPT
  • Features: Threaded
  • Shape / Application: Round; Screw Cap or Plug
Nylon Hole Plug -- 8609
from Keystone Electronics Corp.

Type: Hole Plug. Style: Solid. Material: Nylon. Hole Diameter: 1.250 [31.8] [See More]

  • NPT Thread: 1 1/4" NPT
  • Material: Nylon
  • Shape / Application: Round
9149523 [59986 from ELESA (UK) Ltd.]
from RS Components, Ltd.

Made from glass-fibre reinforced technopolymer. NBR synthetic rubber seals. Solvent, oil, grease, chemical resistant. Maximum working temperature 130 °C. Graphic function symbol on plug cap. Plug Type = Oil Drain. Thread Length = 14mm. Overall Length = 24mm. Material = Polyamide Based... [See More]

  • NPT Thread: 1 1/4" NPT
  • Material: Nylon; Polyamide Based Technopolymer
P Series -- P-39
from Polymer Molding, Inc.

Designed similar to the tapered series, the P Series has the added feature of a pull-tab located on the top of the flange. Typical wall thickness: .032. Color: Blue. Material: Low Density Polyethylene. LDPE service temperature: 150 ° F (66 ° C). RoHS Compliant [See More]

  • NPT Thread: 1 1/4" NPT
  • Features: Threaded; Tapered; Flange; Pull Tab
  • Shape / Application: Round
  • Diameter: 1.6