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AMS 3220 — Technical Data Sheet

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— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

NONMETALLIC SPECIAL SHAPED SECTI. Key specifications include part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the Federal Logistics Information System under NSN 4720-00-233-0082, 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
AMS 3220
NSN: 4720-00-233-0082
FSC: 4720
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyO-RING
NSN4720-00-233-0082
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: AMS 3220 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SPECIFICATION/STANDARD DATA: 81349-MIL-R-6855 GOVERNMENT SPECIFICATION
•
FLEXIBILITY: FLEXIBLE
•
INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
MATERIAL: RUBBER SYNTHETIC TUBE
•
NONMETALLIC HARDNESS RATING: 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
•
INSIDE SURFACE CONDITION: SMOOTH
•
OUTER COVERING ENVIRONMENTAL PROTECTION: OIL RESISTANT
TECHNICAL CHARACTERISTICS
SPECIFICATION/STANDARD DATA81349-MIL-R-6855 GOVERNMENT SPECIFICATION
FLEXIBILITYFLEXIBLE
INSIDE DIAMETER0.500 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
MATERIALRUBBER SYNTHETIC TUBE
NONMETALLIC HARDNESS RATING55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A
INSIDE SURFACE CONDITIONSMOOTH
OUTER COVERING ENVIRONMENTAL PROTECTIONOIL RESISTANT
MINIMUM TENSILE STRENGTH1500 POUNDS PER SQUARE INCH LBS
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MIL-PRF-6855/4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
26566GRADE2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M6855/4-10H207InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9M55-1AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
292570InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5731174InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMS 3220?
AMS 3220 is a NONMETALLIC SPECIAL SHAPED SECTI.
What parts can replace AMS 3220?
There are 7 known substitutes for AMS 3220: MIL-PRF-6855/4, 26566GRADE2, M6855/4-10H207 and 4 more. Substitute compatibility should be verified for your specific system.
Is AMS 3220 still available?
AMS 3220 is currently cancelled.
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Last verified: September 2026