Are these (Milton (S-716)) push to connect or do you have to pull back the sleeve?

With the Milton ( S-716 ) , all you do is slide the sleeve back and insert the male coupler ,then slide then slid the sleeve forward and the two are locked together.

Can this coupler be used for natural gas?

It works well with compressed air at pressures up to 120 psi but I doubt it would meet building code to use it for natural gas or any explosive gas.

What is the length of the threaded portion?

The actual length of the threads is 3/8". Over all to the base of the hex would be 1/2".

what is the difference between quick change and push type couplers?

On “push in” couplers the locking collar stays back when a tool is not inserted. To insert a tool all you need to do is push the tool into the coupler, unlike traditional couplers that you manual have to pull the collar back and insert the tool at the same time. To release the tool is the same for both, pull back on the collar and it spits the tool out. The push in style couplers are significantly easier to operate, but tend to start leaking sooner than a traditional style.

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Description

🔩 Connect like a pro — the M-Style standard that won’t let you down!

ROBUST BRASS BUILD - Durable brass construction with Buna-N seals guarantees long-lasting, rust-resistant performance.
COMPACT LIGHTWEIGHT - Sleek 5.23 cm design weighing just 45g—engineered for easy handling without bulk.
UNIVERSAL M STYLE FIT - Seamlessly compatible with Milton, ColorFit, and red competitor couplers for effortless integration.
HIGH PRESSURE TEMP TOLERANCE - Operates reliably at up to 300 PSI and 250°F, perfect for demanding professional environments.
KWIK CHANGE INTERCHANGEABILITY - Military-spec compliant design ensures quick swaps across most manufacturers’ pneumatic systems.

The Milton S-716 is a precision-engineered 1/4" MNPT male M-Style air coupler crafted from durable brass with Buna-N seals. It supports a maximum airflow of 40 SCFM at 300 PSI and withstands temperatures up to 250°F. Fully compatible with industry-standard M-Style and Kwik-Change systems, it ensures seamless interchangeability and reliable performance in professional pneumatic setups.

Specifications

Manufacturer	Milton Industries
Part Number	S-716
Product Dimensions	5.23 x 2.39 x 2.39 cm; 45.36 g
Item model number	S-716
Size	Single
Colour	Red
Style	M-Style
Finish	Brass
Material	Brass
Power Source	Air Powered
Item Package Quantity	1
Number of Pieces	1
Measurement System	Inch
Special Features	M-STYLE: The industry standard coupler. Milton M-style, ColorFit M-style, + red competitor couplers/plugs are all compatible. -KWIK-CHANGE®: Interchangeable/compatible with most manufacturers. Compliant with military specification MIL-C-4109. -NPT: 1/4" male national pipe thread flow size. Durable brass. Buna-N seals. -MAXIMUM: 40 standard cubic feet per minute (SCFM). 300 PSI inlet pressure. Temperatures up to 250 degrees F. -INCLUDED IN MILTON M-STYLE KITS: #S-221, S-222, MK1669-1, 683-MCPK.
Included Components	1 Milton Branded Product
Batteries included?	No
Batteries Required?	No
Item Weight	45.3 g

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