Are these food grade or safe to use in a 5 gallon beer keg?

The manufacturer says they are intended for lubricating oil and are not safe for food. But the main description says they are for plumbing use. Can someone please explain?

Does this work for air sealing? trying to seal an air gap between an air motor and a hopper unit in my airsoft gun.

Certainly worth trying; this is a handy kit I purchased and my husband has dipped in to it on several occasions. These are round, but if it can be compressed enough to seal off your area, and as there are no caustic fluids are involved (ie, like an AC unit with the newer freon), it should be fine. You just have to find the right fit. Hope it works for you.

need to buy 150 1/ 4 id 3/8 od 1/16 thick 0-ring

This is a metric set. You might find something close but not exact n this set. Suggest you look specifically for the O ring size and material makeup that you need.

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770pcs Rubber O Ring Assortment Kits 18 Sizes Sealing Gasket Washers Made of Nitrile Rubber NBR by HongWay for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections

770pcs Rubber O Ring Assortment Kits 18 Sizes Sealing Gasket Washers Made of Nitrile Rubber NBR by HongWay for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections

Product ID: 293961742

Details

Brand
HongWay
Colour
Black
Item Diameter
3 Millimetres
Material
Nitrile Rubber
Nominal Inside Diameter
10 Millimetres

📦18 sizes in organized case

🌡️-40℉ to 248℉ temp range

🛠️770pcs total for every fix

1583 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal the deal with the ultimate O-ring arsenal!

BUILT TO ENDURE - Engineered to withstand extreme temperatures from -40℉ to 248℉, perfect for automotive and plumbing needs.
ALL IN ONE FIX KIT - 770 premium nitrile O-rings covering 18 essential sizes for any repair challenge.
OIL FUEL RESISTANT - NBR material ensures reliable sealing against oils, hydraulic fluids, and abrasion.
RISK FREE CONFIDENCE - Backed by 45-day money-back guarantee and responsive 24-hour customer support.
EFFORTLESS ORGANIZATION - Comes in a sleek plastic case with labeled compartments for quick size selection and storage.

The HongWay 770pcs Rubber O Ring Assortment Kit offers a comprehensive selection of 18 sizes made from durable nitrile rubber (NBR), designed to resist oils, fuels, and abrasion. With a wide temperature tolerance from -40℉ to 248℉, this kit is ideal for automotive, plumbing, and industrial sealing applications. Packaged in a handy organizer case with labeled compartments, it ensures quick access and efficient storage. Supported by a 45-day money-back guarantee and dedicated customer service, this kit is a must-have for professionals and DIY enthusiasts alike.

Specifications

ASIN	B07WRF9YYC
Best Sellers Rank	#83,780 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #112 in Pressure Washers, Steam & Window Cleaners
Brand Name	HongWay
Colour	Black
Country of Origin	India
Customer Reviews	4.5 4.5 out of 5 stars (4,021)
Item Diameter	3 Millimetres
Manufacturer	HongWay
Material Type	Nitrile Rubber
Model Number	HongWay20190820236320
Nominal Inside Diameter	10 Millimetres
Nominal Outside Diameter	3 Millimetres
Number of Items	770
Number of Packs	1
Number of Pieces	770
Part Number	HongWay20190820236320
Set Name	770pcs Rubber O Ring Assortment Kits 18 Sizes
Temperature Range	4E+1 Degrees Fahrenheit
UPC	753393011022
Unit Count	1 Count
Warranty Description	no warranty available

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