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Contact Us 24/7, or call us at 1-844-740-5417 during business hours for the fastest response to your questions.

  • Products
    • Amerex
    • Amerex KP
    • Ansul Fire Safety Products
    • Black Pipe Fittings
    • Buckeye
    • Chrome Fittings
    • Evergreen Quick Seals
    • Fire Equipment Gauges
    • Fire Extinguisher Cabinets
    • Fire Extinguisher Covers
    • Fire Extinguisher Hooks
    • Fire Extinguisher Pull Pins
    • Fire Extinguishers
    • Fire Hoses
    • Globe Fusible Links
    • Hole Punches
    • Hose Straps and Clips
    • Hydro Test/Recharge Adapters
    • Miscellaneous Parts
    • Nitrogen
    • O-Rings
    • Exclusive Customer Sale Items
    • Pyro Chem System Parts
    • Range Guard System Parts
    • Service Verification Collars
    • Signs
    • Sprinkler Parts
    • System Components
    • Tamper Seals
    • Valve Stems
    • Vehicle Brackets
  • About Us
    • Our Company
  • Blog
  • Contact Us
  • Contact Us
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O-Rings


Showing 1–15 of 34 resultsSorted by popularity



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  • OR27-NFS O-RINGS FOR AMEREX & BADGER (SOLD IN PACKS OF 100)

    OR27-NFS O-RINGS FOR AMEREX & BADGER (SOLD IN PACKS OF 100)

    Rated 5.00 out of 5

    $0.14

    Brands: Amerex, Badger

    Add to cart

  • 340036K-NFS KIDDE O-RINGS (340035) **Sold In Packs Of 50**

    340036K-NFS KIDDE O-RINGS (340035) **Sold In Packs Of 50**

    Rated 5.00 out of 5

    $0.65

    Brands: Kidde

    Add to cart

  • OR28-NFS ANSUL O-RINGS (Must Order In Packs Of 100)

    OR28-NFS ANSUL O-RINGS (Must Order In Packs Of 100)

    Rated 5.00 out of 5

    $0.14

    Brands: Ansul

    Add to cart

  • OR37-NFS O-RINGS FOR BUCKEYE FIRE EXTINGUISHER (Sold in Packs of 100)

    OR37-NFS O-RINGS FOR BUCKEYE FIRE EXTINGUISHER (Sold in Packs of 100)

    $0.14

    Brands: Buckeye

    Add to cart

  • QR40-NFS ANSUL QUAD RINGS FOR LARGE VALVE ***SOLD IN PACKS OF 50***

    QR40-NFS ANSUL QUAD RINGS FOR LARGE VALVE ***SOLD IN PACKS OF 50***

    $0.40

    Brands: Generic

    Add to cart

  • QR41-NFS ANSUL O-RINGS QUAD RINGS FOR LARGE VALVE ***50 PACK***

    QR41-NFS ANSUL O-RINGS QUAD RINGS FOR LARGE VALVE ***50 PACK***

    $0.30

    Brands: Ansul

    Add to cart

  • OR29-NFS O-RINGS FOR AMEREX & BADGER FIRE EXTINGUISHER (Sold in Packs of 100)

    OR29-NFS O-RINGS FOR AMEREX & BADGER FIRE EXTINGUISHER (Sold in Packs of 100)

    Rated 5.00 out of 5

    $0.14

    Brands: Amerex, Badger

    Add to cart

  • 3380 VALVE STEM SEALS FOR AMEREX 6092

    3380 VALVE STEM SEALS FOR AMEREX 6092

    $0.95

    Brands: Amerex

    Add to cart

  • OR20 O-RINGS FOR FIRE EXTINGUISHERS (Sold In Packs Of 100)

    OR20 O-RINGS FOR FIRE EXTINGUISHERS (Sold In Packs Of 100)

    $0.14

    Brands: Buckeye, Generic

    Add to cart

  • 439848 ANSUL O-RINGS FOR UPDATED STYLE NOZZLES

    439848 ANSUL O-RINGS FOR UPDATED STYLE NOZZLES

    Rated 5.00 out of 5

    $2.25

    Brands: Ansul

    Add to cart

  • OR8-NFS AMEREX HOSE O-RING 1532

    OR8-NFS AMEREX HOSE O-RING 1532

    $0.10

    Brands: Amerex

    Add to cart

  • OR21-NFS O-RINGS FOR FIRE EXTINGUISHERS (Sold In Packs Of 100)

    OR21-NFS O-RINGS FOR FIRE EXTINGUISHERS (Sold In Packs Of 100)

    Rated 5.00 out of 5

    $0.14

    Brands: Generic, Kidde

    Add to cart

  • 3390 VALVE STEM SEALS FOR AMEREX 6093

    3390 VALVE STEM SEALS FOR AMEREX 6093

    $0.99

    Brands: Amerex

    Add to cart

  • OR10-NFS AMEREX HOSE O-RING 6978

    OR10-NFS AMEREX HOSE O-RING 6978

    $0.12

    Brands: Amerex

    Add to cart

  • OR26 O-RING (SOLD IN PACKS OF 100)

    OR26 O-RING (SOLD IN PACKS OF 100)

    $0.14

    Brands: Generic

    Add to cart

Viewing 15 of 34


What is an o-ring on a fire extinguisher, and what part does it play in security? You may know this part as an essential of vehicle engines and hydraulic systems everywhere, but the o-ring is also instrumental in promoting safety on other products. This humble component helps keep extinguishers properly sealed to prevent leaking and ensure your equipment is ready if a fire occurs.

High-Quality O-Ring Options From National Fire Supply

National Fire Supply is your nationwide source for durable and sturdy o-rings for fire equipment. Our in-stock inventory includes selections like:

  • Nozzle and fire hose o-rings
  • Gasket cartridge receivers
  • Valve stem seals
  • Large-valve quad rings

We offer options from today’s most respected brands, including:

  • Ansul
  • Amerex
  • Pyro Chem
  • Kidde

Our store also stocks universal o-rings to fit Badger and Buckeye equipment, plus complete fire extinguisher o-ring kits.

Shop National Fire Supply Online Today

Order securely from our digital storefront and wide in-stock product catalog 24/7. We ship the same day we process your order and offer free, two-day express delivery for many small parts. Have questions or want product guidance? Our team has the answers and advice you need. Contact us online or call our team to experience our signature customer service!

Have Questions?

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