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A55365 ✓ 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 PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include material: PLASTIC BOTTOM RING, inside_diameter: 0.125 INCHES NOMINAL IN, outside_diameter: 0.540 INCHES NOMINAL IN, cross-sectional_shape_style: CUP BOTTOM RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-608-9320, 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
A55365
NSN: 5330-00-608-9320
FSC: 5330
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialPLASTIC BOTTOM RING
inside_diameter0.125 INCHES NOMINAL IN
outside_diameter0.540 INCHES NOMINAL IN
cross-sectional_shape_styleCUP BOTTOM RING
NSN5330-00-608-9320
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A55365 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
•
OUTSIDE DIAMETER: 0.540 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CUP BOTTOM RING
•
INSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
MATERIAL: PLASTIC BOTTOM RING
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.540 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECUP BOTTOM RING
INSIDE DIAMETER0.125 INCHES NOMINAL IN
MATERIALPLASTIC BOTTOM RING
MATERIALPLASTIC TOP RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
0450-4168LUPInterchangeable
interchangeable cross-reference
interchangeable
55365Interchangeable
interchangeable cross-reference
interchangeable
AN2541-12Interchangeable
interchangeable cross-reference
interchangeable
2223RInterchangeable
interchangeable cross-reference
interchangeable
35632Interchangeable
interchangeable cross-reference
interchangeable
ITT POMONA3563-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A55365?
A55365 is a PACKING ASSEMBLY.
What parts can replace A55365?
There are 17 known substitutes for A55365: 0450-4168LUP, 55365, AN2541-12 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A55365?
A55365 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-608-9320. 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