JSP® Force™8 To 40MM NATO (RD40x1/7) Adapter

This prototype design for a JSP® Force™ 8 respirator to 40 MM NATO, gas mask thread adapter. This adapter makes the JSP® Force™8 line of respirators compatible to RD40x1/7 threaded filter canisters or step down adapters to enable greater cross compatibility of respirators and filters to other manufacturer models.

If you do not have access to 40MM (RD40x1/7) filters, you can use the following adapters to step down to COTS filter cartridges from these companies below:

40 MM NATO to 3M™ Bayonet Adapter
https://www.thingiverse.com/thing:4245358

40 MM NATO to MSA® Bayonet Adapter
https://www.thingiverse.com/thing:4265715

40MM NATO to MSA® Comfo Classic Adapter
https://www.thingiverse.com/thing:4267676

40MM NATO to Honeywell/Honeywell North® Adapter
https://www.thingiverse.com/thing:4268775

40MM NATO to Honeywell Sperian® Filter Adapter
https://www.thingiverse.com/thing:4297348

40MM NATO to AOSafety® Threaded Adapter
https://www.thingiverse.com/thing:4273365

40 MM NATO to AOSafety® R5700 8051 Bayonet Adapter
https://www.thingiverse.com/thing:4265538

40MM NATO to Portwest® Bayonet Adapter
https://www.thingiverse.com/thing:4273464

40MM NATO to Moldex® 7000/9000 Series EasyLock® Bayonet Adapter
https://www.thingiverse.com/thing:4275446

40MM NATO to Secura BC Bayonet Adapter
https://www.thingiverse.com/thing:4294187

40MM NATO to JSP® Force™8 Filter Adapter
https://www.thingiverse.com/thing:4294203

Alternatively, if you cannot source COTS filters, search thingiverse, there are a number of other DIY filter cartridge designs to mate to other major manufacturer, 3M/MSA/etc. respirator’s attachment system.

Part Description:

JSP_FORCE_8_TO_40MM_NATO_ADAPTER_GEN1.stl

Initial model release.

Disclaimers/Risks:

1.) It would appear that the JSP® line of respirators has the bayonet/filter mating surfaces interestingly reversed, the gasket is on the filter side, all that is required is to ensure gasket on the JSP® filter side, nominal ID of 36.8 mm and gasket in the RD40x1/7 mask or female adapter.

2.) 3D printing materials are not resistant to many solvents, are water soluble, and degrade when exposed to chemicals. 3D printing this adapter is only a temporarily ad-hoc solution against biological threats. Once supply chain return to normal users should purchase OEM OSHA/NIOSH/EN standard approved adapters and respirator accessories.

Dev. Notes:

04/22/2020 – Initial model release. I do not have any JSP® series respirators or filters to check measurements, so please report back in comments for any fitment issues and I’ll release revisions as required.

Credits:

Thanks to Ruszel and BigFootPL for publishing their JSP end caps and adapters.