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Technical Data Sheet
1642764 ✓ 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 SEAL RING,METAL is a the manufacturer industrial component. Key specifications include end_item_identification: 2320-01-522-1859, part_name_assigned_by_controlling_agency: PISTON SEAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-583-2727, 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
1642764
NSN: 5330-01-583-2727
FSC: 5330
CAGE: 5X050 — CRYSTEEL MANUFACTURING, INC DBA CRYSTEEL MANUFACTURING INC (USA)
SPECIFICATIONS
end_item_identification2320-01-522-1859
part_name_assigned_by_controlling_agencyPISTON SEAL
NSN5330-01-583-2727
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1642764 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
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYPISTON SEAL
END ITEM IDENTIFICATION2320-01-522-1859
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
400252Interchangeable
interchangeable cross-reference
interchangeable
A13A2Interchangeable
interchangeable cross-reference
interchangeable
MILC6499CInterchangeable
interchangeable cross-reference
interchangeable
US00199023Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1642764?
1642764 is a SEAL RING,METAL.
What parts can replace 1642764?
There are 4 known substitutes for 1642764: 400252, A13A2, MILC6499C and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1642764?
1642764 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-583-2727. This indicates validated use in U.S. government and defense supply chains.
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