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012-2201-237 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

012-2201-237: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 3.359 INCHES NOMINAL IN, cross-sectional_height: 0.139 INCHES NOMINAL IN, end_item_identification: ECHOTEL MODEL 961 AND 962 ULTRASONIC LEVEL SWITCHES. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-585-3755, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
012-2201-237
NSN: 5331-01-585-3755
FSC: 5331 — O-ring
CAGE: 8V139 — INTROTEK INTERNATIONAL, L.P. DBA INTROTEK (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter3.359 INCHES NOMINAL IN
cross-sectional_height0.139 INCHES NOMINAL IN
end_item_identificationECHOTEL MODEL 961 AND 962 ULTRASONIC LEVEL SWITCHES
NSN5331-01-585-3755
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 012-2201-237 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.359 INCHES NOMINAL IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.359 INCHES NOMINAL IN
END ITEM IDENTIFICATIONECHOTEL MODEL 961 AND 962 ULTRASONIC LEVEL SWITCHES
MATERIALRUBBER FLUOROCARBON CLASS FPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 012-2201-237?
012-2201-237 is a O-RING.
What is the NSN for 012-2201-237?
012-2201-237 is cataloged in the U.S. Government catalog under NSN 5331-01-585-3755. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.