Standard · MS (Military Standards, CAGE 96906)Updated 2026-10-01
MS29513-333
Standard for 'PACKING, PREFORMED, HYDROCARBON FUEL RESISTANT, "O" RING'. The dash size, -333, indicates specific dimensions for the O-ring, including a cross-sectional height between 0.205 and 0.215 inches, and a center hole (inside) diameter between 2.465 and 2.485 inches. Identifies a US aerospace/military hardware standard for O-rings. Governed by the MS standard series, administered by Military Standards.
Part number dissection
MSUS aerospace/military hardware standard for O-rings.
29513Standard for 'PACKING, PREFORMED, HYDROCARBON FUEL RESISTANT, "O" RING'.
333The dash size, -333, indicates specific dimensions for the O-ring, including a cross-sectional height between 0.205 and 0.215 inches, and a center hole (inside) diameter between 2.465 and 2.485 inches.
Specifications
Standard seriesMS
Specification ownerMilitary Standards · CAGE 96906
Base codeStandard for 'PACKING, PREFORMED, HYDROCARBON FUEL RESISTANT, "O" RING'.
Finish / variantThe dash size, -333, indicates specific dimensions for the O-ring, including a cross-sectional height between 0.205 and 0.215 inches, and a center hole (inside) diameter between 2.465 and 2.485 inches.
Acceptable alternates
AS568-333Same dimensions (inside diameter 2.475 inches, cross-section 0.210 inches) as per AS568 standard, which is a widely recognized aerospace O-ring sizing standard.
Confirm acceptability against your drawing before ordering.
Availability
Lead timeQuoted on request
TraceabilityFull documentation with every shipment
BTEK sources through registry-verified producers, authorized distributors and vetted independent channels. Certs of conformance travel with the parts.
Price on request — confirmed same day.
Get a quote in minutes.
Quantity and target date. BTEK's quoting engine sources, prices and replies by email.
BTEK Components MFG LLC · Largo, FloridaPart data compiled and verified by BTEK's sourcing engine.