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Technical Data Sheet
PartsTable / O-RING / HL20655PC129
HL20655PC129 ✓ 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 O-RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-584-0149, 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
HL20655PC129
NSN: 5331-00-584-0149
FSC: 5331 — O-RING
CAGE: 93234 — WORTHINGTON COMPRESSORS INC AIR POWER AND CONSTRUCTION EQUIP DIV (USA)
SPECIFICATIONS
Part NumberHL20655PC129
NSN5331-00-584-0149
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HL20655PC129 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
H9756Interchangeable
interchangeable cross-reference
interchangeable
9756Interchangeable
interchangeable cross-reference
interchangeable
H66296Interchangeable
interchangeable cross-reference
interchangeable
H9665Interchangeable
interchangeable cross-reference
interchangeable
27-084Interchangeable
interchangeable cross-reference
interchangeable
803-6915566-2.1 3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HL20655PC129?
HL20655PC129 is a O-RING.
What parts can replace HL20655PC129?
There are 27 known substitutes for HL20655PC129: H9756, 9756, H66296 and 24 more. Substitute compatibility should be verified for your specific system.
Is HL20655PC129 still available?
HL20655PC129 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026