M83248/1-111 O-RING FUEL DRAIN NAS1593-111

Part# 04-02549
MFR Model# M83248/1-111
Flurocarbon Rubber O-RingM83248/1-1117/16 ID x 5/8 OD x 3/32 W04-02549


M83248 series o-rings are flurocarbon rubber o-rings. Flurocarbon rubber is commonly known as Viton. It is an advanced rubber that has extremely good fuel and heat resistance and is ideally suited for aircraft fuel system applications.
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  • High temperature resistance
  • Excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals. Low swelling in ASTM oil No. 1, and IRM 902 and IRM 903
  • Excellent resistance to aging and ozone
  • Low gas permeability, low compression set


  • Common Names: FKM, Fluoropolymer
  • Trade Names: Viton®, Fluorel®, Technoflon®, Dai-El®
  • Limitations: Steam, hot water, amines, polar solvents, low molecular weight organic solvents and glycol-based brake fluids. Ammonia gas, low molecular organic acids (formic and acetic acids)
  • Service Temperature: 2o to 400o F (-16o to 204o C). General compounds / -67o to 432o F (-55o to 222o C). Specialty compounds


Warren T Verified Purchase

M83248/1-111 O-RING FUEL DRAIN NAS1593-111

September 24, 2022

as ordered, just what I needed.

South E Verified Purchase

M83248/1-111 O-RING FUEL DRAIN NAS1593-111

November 2, 2021

Bought this for a non-aircraft related repair on a car as the original part is not available. Sizing was as advertised, resistant to gas, and material quality seems high. Bought 2 to have a spare but I expect not to replace this o-ring for some time.

Roderick D
May 20, 2021

Right price /right o ring

Lionel S
December 26, 2020


Larry H
April 30, 2021

These are so hard to find, Vans does not sell them, so your the best source. Problem is your cross reference makes it hard to find for your sales person! I almost gave up.

Sam M
May 22, 2020

A wider selection to choose from and missing size info would help immensely.

Watermaid C
April 25, 2024


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the shelf life on these?

These do not have a defined shelf life.

Q: What is Model # / Part # of the O-Ring which fits CAV-110 fuel drain?

Replacement o-ring for CAV-110 is part # 05-22191.

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