4" OD Spinnaker Poles & Fittings

Standard 4" OD Spinnaker Pole Tube 4" OD Spinnaker Pole Tube - Clear Anodized: RTA 4-120A-___: 4" OD Spinnaker Pole Tube is stocked, fully anodized, in a variety of lengths up to the maximum listed above. To order, specify tube length.

4" OD Custom Poles and Kits For a quote on Custom Poles or unassembled Kits, specify tube diameter, preferred End Fittings (listed below), Bridle configuration (if any) and contact us. If in doubt about Pole size, end fittings, or optimal configuration, please contact us for recommendations. We have built hundreds of different Spinnaker and Whisker Poles and now have an extensive database of successful pole sizes, in fact, we probably have built a Pole for a boat just like yours.

4" OD Spinnaker Pole End Fittings Pole End Fittings are divided into several categories, listed below. Standard End Fittings are suitable for use on the Outboard end of the Pole, and on the Inboard end when a Ring Car (or a fixed Mast Ring) is used on the Mast. Their use on both ends is required when using an End for End jibing procedure. -- See also: Spinnaker Cars. Special Inboard and Outboard Ends require the use of a Dip Pole jibing method and more specific Mast attachments, these categories include more specialized fittings such as Reaching Strut Ends. -- See also: Spinnaker Cars. End Fitting Adapters, or Collars, allow the use of a larger diameter tube with end fittings designed for a smaller one.

Standard Pole Ends for 4" OD Tube Listed below are Standard End Fittings - suitable for use on the Outboard end of the Pole, and on the Inboard end when a Ring Car (or a fixed Mast Ring) is used on the Mast. Their use on both ends is required when using an End for End jibing procedure.

Aluminum Piston End for 4" OD Tube: NF 13640: Cast aluminum Piston End incorporates eyes for attachment of pole lift bridle and foreguy, Piston has hole for attachment of a Trip wire. Piston End has a stainless steel spring-loaded plunger pin that must be manually retracted by pulling on a lanyard, to attach the fitting to a ring or guy. Black anodized fitting (w/ adapter) projects 6" (maximum) from tube end. Replacement Piston & Spring Kit is available for this item, Order: NF EF-PK-2:
Aluminum Trigger End for 4" OD Tube: EF-400-ATR: Forespar cast aluminum Trigger End incorporates eyes for attachment of pole lift bridle and foreguy, Piston has hole for attachment of an externally mounted Trip wire, allowing for operation while at the fitting. Trigger End is like a piston end, except that when the plunger is manually retracted it locks in the open position, waiting for pressure on the Trigger (from a ring, car or guy) to cause it to snap shut. Black anodized fitting projects 8 1/8" (maximum) from tube end. Replacement Piston & Spring Kit only is available for this item, Order: EF-XP-PK: Replacement Trigger & Spring Kit (includes *EF-XP-PK*) is available for this item, Order: EF-TR-TK:
Aluminum Trigger End for 4" OD Tube: NF 10054: - NLA Cast aluminum Trigger End incorporates eyes for attachment of pole lift bridle and foreguy, Piston has hole for attachment of an externally mounted Trip wire, allowing for operation while at the fitting. Trigger End is like a piston end, except that when the plunger is manually retracted it locks in the open position, waiting for pressure on the Trigger (from a ring, car or guy) to cause it to snap shut. Black anodized fitting (w/ adapter) projects 6" (maximum) from tube end. Replacement Piston & Spring Kit is available for this item, Order: NF EF-PK-2:

Special Inboard Pole Ends for 4" OD Tube Listed below are Special Inboard Pole Ends. They require specific Mast attachments, See Spinnaker Cars, and the use of a Dip Pole jibing method.

'Ultra' Plastic TS End for 4" OD Tube: EF-400-UTS: Forespar 'Ultra' composite TS End has socket for 1" OD Forespar TS Bayonet Pin. Unit locks automatically when pushed onto TS Pin, and is released by pressing SS lever protruding from one side. Gray molded TS End is 5 1/2" long and projects 3 1/2" (maximum) from tube end.
Aluminum TS End for 4" OD Tube: EF-400-ATS: Forespar cast aluminum TS End has socket for 1" OD Forespar TS Bayonet Pin. Unit locks automatically when pushed onto TS Pin, and is released by pressing SS lever protruding from one side. Gray anodized TS End is 5 1/8" long and projects 3 5/8" (maximum) from tube end.
Nicro-Fico 5/8" Pin Receiver End w/ Sheave for 4" OD Tube: NF 10044A:
Cast aluminum Pin Receiver PR End for 5/8" OD Nicro-Fico Bayonet Pin. Automatic latch is released with the press of a button. Release latch is shrouded to prevent inadvertent release and to protect fingers. Unit incorporates flush Sheave for internal retractable Bridle. A clean, smooth functioning system. Black anodized Nicro-Fico PR End projects 5 1/2" (maximum) from tube end.
'Stubbie' Pin Receiver End for 4" OD Tube: SPC EF-400-PRAX:
Machined aluminum 'Stubbie' Pin Receiver PR End for Sparcraft 7/8" OD Bayonet Pin. Automatic latch is released by pulling SS Spring Pin. Black anodized PR End projects 3 1/4" (maximum) from tube end.
GP Pin Receiver End for 4" OD Tube: SPC EF-400-PRS: Deluxe Grand-Prix Pin Receiver PR End for Sparcraft 7/8" OD Bayonet Pin features SS Pin Socket. Automatic latch is released by pulling SS Spring Pin. Black anodized Aluminum PR End (w/ Composite adapter) projects 3 3/8" (maximum) from tube end.

Bell Plug End for 4" OD Tube: NF 13677: Cast aluminum Bell Plug (BP) End fits Nicro-Fico, AMCO, and old-style Forespar standard Bell Toggles. Standard Bell Plug End has 1 1/2" diameter ball, Black anodized BP End (w/ adapter) projects 9 1/2" (maximum) from tube end.

Special Outboard Pole Ends for 4" OD Tube Listed below are Special Outboard Pole Ends. Fittings listed here are for Outboard use only, and are not compatible with any standard Mast fittings or Cars.

'Ultra' GPS Composite Trigger End w/ SS Liner for 4" OD Tube: EF-400-UGPS:
Forespar 'Ultra' composite GPS Trigger End incorporates Spectra loops for attachment of pole lift and foreguy, formed SS liners to minimize chafe on the Guy, and includes an internal Spectra Trip lanyard. Trigger End is like a piston end, except that when the plunger is manually retracted it locks in the open position, waiting for pressure on the Trigger (from a ring, car or guy) to cause it to snap shut. Gray molded End Fitting is 7 1/2" long and projects 5 1/2" (maximum) from tube end.
Aluminum GP Piston End for 4" OD Tube: EF-400-AGP:
Forespar Aluminum GP Piston End incorporates cast eyes for attachment of pole lift and foreguy, and includes an internal Spectra Trip lanyard. Piston End has a stainless steel spring-loaded plunger pin that must be manually retracted by pulling on a lanyard, to attach the fitting to a ring or guy. Cast gray anodized end. mmm	m
SS Intrepid II Outboard End for 4" OD Tube: SPC EF-400-12M:
Stainless Steel Intrepid II Outboard End incorporates SS investment cast Trigger Assembly integrated into a lightweight Aluminum body. Originally developed for the 12-meter Intrepid, this simple and efficient unit is still the standard Pole End for IACC yachts and others from 50' up to maxi yachts. State-of-the-art Trigger End includes provisions for an internal Trip lanyard. SS end features integral eye for attachment of foreguy, pole lift attachment eye is milled into machined Aluminum body. Intrepid II Outboard Trigger End projects 6 1/4" (maximum) from tube end when closed.

Reaching Strut End for 4" OD Tube: EF-400-RSO: Forespar cast aluminum Reaching Strut (RS) End for 4" OD Tube has sheave for up to 5/8" line. Gray anodized end has heavy finger on upper side and integral 1/2" ID bails (on 4 sides) for attachment of control lines. Unit projects 8 1/4" from tube end, 2" OD Sheave bearing surface is 3 3/4" from tube end.

End Fitting Adapters Adapting Collars allow End Fittings to be used with larger diameter tube. This sometimes results in a net weight savings, and often allows for configurations otherwise unavailable. Please Note that adapting collars can be used together, but have ID's designed for End Fittings and can not be used for sleeving two sizes of tubing together. As always, special sizes are available on a Custom basis.
4" End Fitting Adapter for 4 1/2" OD Tube - Plastic: AC4-45U: 'Ultra' Composite Plastic Adapting Collar allows use of any End Fitting for 4" OD Standard Spinnaker Pole Tube with 4 1/2" OD Standard Spinnaker Pole Tube. Black Collar is 2 3/4" long and projects 5/8" from tube end. ID is 3.81", OD (for tube ID) is 4.291". F
4" End Fitting Adapter for 4 1/2" OD Tube: AC4-45A: Cast Aluminum Tube Adapting Collar allows use of any End Fitting for 4" OD Standard Spinnaker Pole Tube with 4 1/2" OD Standard Spinnaker Pole Tube. Gray anodized Collar is 2 1/2" long and projects 1 1/4" from tube end. F

3" End Fitting Adapter for 4" OD Tube - Plastic: AC3-4U: 'Ultra' Composite Plastic Adapting Collar allows use of any End Fitting for 3" OD Standard Spinnaker Pole Tube with 4" OD Standard Spinnaker Pole Tube. Gray Collar is 2 1/2" long and projects 5/8" from tube end. F
3 1/2" End Fitting Adapter for 4" OD Tube: AC35-4AX: 3 1/2" End Fitting Adapter for 4" OD Tube, Clear: AC35-4ACX: Cast Aluminum Tube Adapting Collar allows use of any End Fitting for 3 1/2" OD Standard Spinnaker Pole Tube with 4" OD Standard Spinnaker Pole Tube. Gray or Clear anodized Collar anodized Collar is 4" long and projects 2" from tube end. NF 13595

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Spars, Rigging, and Hardware for Sailboats

Standard 4" OD Spinnaker Pole Tube Measurements: 4.00" OD x 3.75" ID (101.6mm x 95.2mm) Wall Thickness: .120" Weight/ft.: 1.72 lbs. Moments of inertia: Circumference: 12.57" Alloy: 6063-T6 Stock Lengths: Up to 24'4" Common Boat usage: 35' - 46' LOA
4" OD Standard Spinnaker Pole Tube is used in a variety of applications, including Spinnaker Poles, Reaching Struts, and Whisker Poles. Standard Pole Fittings for this tube size are listed below.