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Milton (523) Bayonet Tire Inflator Gauge - Grip-Style Air Chuck Head to Lock onto Valve, 120 Max PSI

4.3 4.3 out of 5 stars 54 ratings
$59.84
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Purchase options and add-ons

  • 1/4" NPT. Air chuck threads: 7/16”-27 UNS. Pressure range of PSI (10-120) and kPa (80-840).
  • Includes: Bayonet-style inflator gauge, Grip head air chuck to lock onto valve, and 36" Hose. (Milton 520-522 all come with 12" hoses.)
  • Replacement hose whip: Milton #529.
  • Replacement air chuck: Milton #500-43.
  • All Milton replacement hose whips have 1/4” NPT threads and are interchangeable with any Milton bayonet gauge.
› See more product details

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Top Brand: Milton

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From the manufacturer

Milton Industries was founded in 1943 as a family business with only a handful of products and a simple idea; provide the quality products for our customers. For the past years, Milton has been the product when it comes to pneumatic accessories. We have invented numerous industry standard products, including the classic M-Style “I/M” KWIK Change Coupler and Plug, Window Inflator Guage, Safety Blow Guns and the iconic Driveway Signal chimes and bell. With these inventions, our portfolio has grown to over 1400 different SKU’s. These products cover a broad range of applications in various industries, such as automotive, fleet maintenance, construction, and manufacturing. Milton continues to be in high quality pneumatic accessories and fittings, proudly living up to our heritage of superior products and reliability. Milton has grown to over 1,400 products from its humble beginnings years ago with a product offering of just 11 part numbers.

Product Description

Milton (523) Bayonet Tire Inflator Gauge - Grip-Style Air Chuck Head to Lock onto Valve, 120 Max PSI


Milton’s #523 Grip-styled head chuck bayonet gauge conveniently locks onto tire valves. It has lever action and is made with heavy-duty construction, providing long service life even with constant use. Valve and gauge cartridges are replaceable and combined in one easy unit. Includes a 3-foot hose with a pressure range that offers 10-120 PSI (2-lb. increments) or 80-840 kPa (20 kPa increments). The air chuck has 7/16”-27 UNS threads. Complete with a jumbo white nylon indicator bar for easy reading.


With ¼” NPT threads, all Milton hose whips are compatible for use and have interchangeable connections with any of the 4 Milton Bayonet Inflator Gauge bodies: #520 (straight chuck head), #521 (single chuck head), #522 (dual truck head chuck), and #523 (grip chuck head to lock onto valve).


Recommended Replacement Parts:
S-523’s replacement air hose whip: Milton #529 (36-inch hose whip w/grip chuck head).
S-523’s replacement air chuck: Milton #P500-43.
Replacement cartridge for #520-523: Milton #525.

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Milton (523) Bayonet Tire Inflator Gauge - Grip-Style Air Chuck Head to Lock onto Valve, 120 Max PSI

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What's in the box

  • BAYONET GAUGE

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    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    54 global ratings

    Customers say

    Customers like the performance and ease of use of the auto accessory. They mention that it works extremely well, the locking chuck is cool, and it's easy to use with one hand.

    AI-generated from the text of customer reviews

    9 customers mention9 positive0 negative

    Customers are satisfied with the performance of the auto accessory. They mention that it works extremely well, the locking chuck is cool, and it's much better to use and faster to check tire pressure with the built-in tire gauge. Some say that it'll be a great tool, just a little expensive.

    "...I stated using their stuff in the 80s. This hose works great! The locking chuck is cool." Read more

    "...F (-23 C), that I recall, and the hose remained flexible and the gauge worked. Easy to use with one hand as it lockes to the stem...." Read more

    "Works extremely well. I gave it a 4 only because it doesn’t have a bleeder valve which is an additional desirable function." Read more

    "great tool, just little expensive" Read more

    5 customers mention5 positive0 negative

    Customers find the lock on chuck of the auto accessory easy to use. They say it's easy to operate with one hand and that the chuck is cool.

    "...This hose works great! The locking chuck is cool." Read more

    "...The lock on chuck makes the job easy -- the easy to read Milton gauge is just like the one at the gas station that charges $1.50 to fill one tire...." Read more

    "...Easy to use with one hand as it lockes to the stem...." Read more

    "Very easy to use, and well made." Read more

    Top reviews from the United States

    T. Lomax
    5.0 out of 5 stars Milton Air Chuck
    Reviewed in the United States on April 9, 2023
    Verified Purchase
    It’s made by a company trusted in the auto service industry for years. I stated using their stuff in the 80s. This hose works great! The locking chuck is cool.
    Helpful
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    Amazon Customer
    5.0 out of 5 stars Tire inflation made easy
    Reviewed in the United States on October 1, 2020
    Verified Purchase
    After years of using a standard tire inflation chuck and tire pressure gauge, I finally invested in the Milton Bayonet tire inflation gauge. WOW! I knew I was doing things the hard way, but didn't realize how much of job aid the Milton gauge with lock on chuck would be to the task of checking three trailers (4 tires per trailer), a F-250 pickup truck and ATV for proper tire inflation. The lock on chuck makes the job easy -- the easy to read Milton gauge is just like the one at the gas station that charges $1.50 to fill one tire. Removal of the tire chuck is quick, with no loss of air from the tire. I should've purchased this product years ago.
    Helpful
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    Buzzard Bait
    5.0 out of 5 stars Fast and accurate
    Reviewed in the United States on March 16, 2019
    Verified Purchase
    I was surprised at the accuracy for such a rugged tool. Easy to read. I've used it at least down to -10 F (-23 C), that I recall, and the hose remained flexible and the gauge worked. Easy to use with one hand as it lockes to the stem. So far it has fit everything in the fleet but is a bit tight on the Jeep rims (a Jeep rim design error, more than anything). Fills fast, leak-free and it's Genuine MILTON! I have 40 year old air-chucks from Milton that still work great!
    Helpful
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    Nancy S.
    5.0 out of 5 stars EASY TO USE !!!
    Reviewed in the United States on April 7, 2022
    Verified Purchase
    I LIKE IT, I LIKE IT, I LIKE IT
    Helpful
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    John Ben Jr
    5.0 out of 5 stars Much better to use and faster to check tire pressure with built-in tire gauge.
    Reviewed in the United States on November 9, 2020
    Verified Purchase
    Sometimes it doesn’t attach to tire stem easily. Good thing I also got a straight fitting too.
    Helpful
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    5toomany
    3.0 out of 5 stars Knobby end not a good design
    Reviewed in the United States on March 1, 2021
    Verified Purchase
    Can’t get it on the valve stem for most cars because the knoby end is too big to get in the narrow space left by the wheel or hub cap.
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    herbieturtle
    4.0 out of 5 stars Great tool
    Reviewed in the United States on February 25, 2020
    Verified Purchase
    Works extremely well. I gave it a 4 only because it doesn’t have a bleeder valve which is an additional desirable function.
    2 people found this helpful
    Helpful
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    Ace
    5.0 out of 5 stars Well made
    Reviewed in the United States on June 13, 2021
    Verified Purchase
    Very easy to use, and well made.
    Helpful
     Report