NPSC, Staright Pipe Thread - Machining Doctor

NPSC Internal Straight (parallel) Pipe Threads are used to manufacture pressure-tight fittings when assembled with an NPT external taper thread.
Simple explnation for: Pitch Diameter, Major Diameter, Minor Diameter, pitch, lead, lead angle, Length of Engagement, crest, root, thread height, over-wire, and allowance.

Collets - Straight, SC Series, SHOWASEIKI

Which Thread Ring Gage is best for my production inspection needs? – WESTport Corp.

1/8 - 27 NPS Straight Pipe Die : Industrial & Scientific

18 Different Types of Thread Taps

D04LLX, Parker Ermeto, Cutting ring - EO 24° cone end

Retention Knob, Pull Stud; DIN/ISO 50, 1.00-8, 15 Degrees, Coolant Thru JM71145 ID 14660

Standard Pipe Taps - MSC Industrial Supply

18 Different Types of Thread Taps

NPSM (NATIONAL PIPE STRAIGHT MECHANICAL) Fittings