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Technical Data Sheet
PartsTable / COMPONENT / 7664 ITEM NO 2
7664 ITEM NO 2 ✓ 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,PREFORMED is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-509-8239, 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
7664 ITEM NO 2
NSN: 5330-01-509-8239
FSC: 5330
CAGE: 22501 — HOWELL LABORATORIES INC DBA HOWELL LABORATORIES INC (USA)
SPECIFICATIONS
Part Number7664 ITEM NO 2
NSN5330-01-509-8239
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7664 ITEM NO 2 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 9
766-4Interchangeable
interchangeable cross-reference
interchangeable
1866Interchangeable
interchangeable cross-reference
interchangeable
770203Interchangeable
interchangeable cross-reference
interchangeable
9604Interchangeable
interchangeable cross-reference
interchangeable
7664-1/4IN.NPTInterchangeable
interchangeable cross-reference
interchangeable
5272Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7664 ITEM NO 2?
7664 ITEM NO 2 is a PACKING,PREFORMED.
What parts can replace 7664 ITEM NO 2?
There are 9 known substitutes for 7664 ITEM NO 2: 766-4, 1866, 770203 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7664 ITEM NO 2?
7664 ITEM NO 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-509-8239. 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