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PartsTable / COMPONENT / 20155 ITEM 12
20155 ITEM 12 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, outside_diameter: 2.750 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.170 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-044-2334, 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
20155 ITEM 12
NSN: 5330-01-044-2334
FSC: 5330
CAGE: 95368 — AERCO INTERNATIONAL, INC. DBA AERCO INTERNATIONAL INC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
outside_diameter2.750 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.170 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationRULON D FSCM 04813 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-044-2334
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20155 ITEM 12 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
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: RULON D FSCM 04813 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
APERTURE DIAMETER: 2.170 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONRULON D FSCM 04813 MFR REF SINGLE MATERIAL RESPONSE OVERALL
APERTURE DIAMETER2.170 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
12-211Interchangeable
interchangeable cross-reference
interchangeable
SM-B-433236Interchangeable
interchangeable cross-reference
interchangeable
100591Interchangeable
interchangeable cross-reference
interchangeable
2247AInterchangeable
interchangeable cross-reference
interchangeable
533118Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-641 TY2CL2STAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20155 ITEM 12?
20155 ITEM 12 is a GASKET.
What parts can replace 20155 ITEM 12?
There are 16 known substitutes for 20155 ITEM 12: 12-211, SM-B-433236, 100591 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20155 ITEM 12?
20155 ITEM 12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-044-2334. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026