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Technical Data Sheet
PartsTable / COMPONENT / 620-50273
620-50273 ✓ 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

SEAL ASSEMBLY,SHAFT,SPRING LOADE. Key specifications include end_item_identification: DAVIT BOAT BOOM STBD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-671-6500, 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
620-50273
NSN: 5330-00-671-6500
FSC: 5330
CAGE: 9F512 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC PUMP DIVISION (USA)
SPECIFICATIONS
end_item_identificationDAVIT BOAT BOOM STBD
NSN5330-00-671-6500
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 620-50273 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: STEEL CASE
•
SURFACE TREATMENT: PLASTIC CASE
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
•
ACCOMMODATED SHAFT DIAMETER: 0.969 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 1.625 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
SEAL WIDTH: 0.239 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SURFACE TREATMENTPLASTIC CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
ACCOMMODATED SHAFT DIAMETER0.969 INCHES NOMINAL IN
HOUSING BORE DIAMETER1.625 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.239 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
CASE STYLERECESSED
OUTSIDE DIAMETER1.628 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5592176Interchangeable
interchangeable cross-reference
interchangeable
1539646Interchangeable
interchangeable cross-reference
interchangeable
9646Interchangeable
interchangeable cross-reference
interchangeable
6Z323Interchangeable
interchangeable cross-reference
interchangeable
8650Interchangeable
interchangeable cross-reference
interchangeable
62050273Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 620-50273?
620-50273 is a SEAL ASSEMBLY,SHAFT,SPRING LOADE.
What parts can replace 620-50273?
There are 9 known substitutes for 620-50273: 5592176, 1539646, 9646 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 620-50273?
620-50273 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-671-6500. 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