{"product_id":"steel-countersunk-hex-socket-plug-mnpt","title":"Steel Countersunk Hex Socket Plug — Flush-Seating MNPT Pipe Plug (1\/8\" to 3\/4\")","description":"\u003cp\u003eThe Steel Countersunk Hex Socket Plug seals off an unused male NPT (MNPT) port in air, gas, and general pipe-and-fitting systems. Its recessed internal hex (Allen) socket lets the plug seat nearly flush with the fitting face — a low-profile alternative to square-head and external-hex plugs where clearance is tight. Machined from steel for durable, leak-resistant service on compressors, manifolds, pumps, and air-distribution lines.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: Countersunk (flush-seating) hex socket pipe plug\u003c\/li\u003e\n\u003cli\u003eConnection: Male NPT (MNPT) tapered thread\u003c\/li\u003e\n\u003cli\u003eDrive: Internal hex (Allen) socket\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003cli\u003eAvailable sizes: 1\/8\", 1\/4\", 3\/8\", 1\/2\", and 3\/4\" MNPT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003ePlugging unused outlets on air compressors, receiver tanks, air manifolds, and distribution headers; closing off gauge, drain, and sender ports; and capping spare ports on pumps and pneumatic assemblies where a flush, snag-free profile is preferred.\u003c\/p\u003e\n\u003cp\u003eAvailable across five common sizes from 1\/8\" to 3\/4\" MNPT, the Warthog steel countersunk hex socket plug is a dependable, low-profile way to seal off ports in compressed-air and industrial piping systems.\u003c\/p\u003e","brand":"Warthog Air Compressor Store","offers":[{"title":"1\/8\" MNPT","offer_id":54353486643475,"sku":"SFCC-085","price":1.0,"currency_code":"USD","in_stock":true},{"title":"1\/4\" MNPT","offer_id":54353486676243,"sku":"SFCC-086","price":1.0,"currency_code":"USD","in_stock":true},{"title":"3\/8\" MNPT","offer_id":54353486709011,"sku":"SFCC-087","price":3.0,"currency_code":"USD","in_stock":true},{"title":"1\/2\" MNPT","offer_id":54353486741779,"sku":"SFCC-088","price":4.0,"currency_code":"USD","in_stock":true},{"title":"3\/4\" MNPT","offer_id":54353486774547,"sku":"SFCC-089","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/pipe-fittings-stainless-steel-hex-socket-plugs-countersunk-pressure-class-150-psi-npt-threads-det__78930.1527098516.jpg?v=1782755990","url":"https:\/\/aircompressorstore.com\/products\/steel-countersunk-hex-socket-plug-mnpt","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}