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Technical Data Sheet
PartsTable / COMPONENT / P510689 ITEM 28
P510689 ITEM 28 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-353-2633, 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
P510689 ITEM 28
NSN: 5330-01-353-2633
FSC: 5330
CAGE: 71454 — FMC TECHNOLOGIES INC DBA FMC FLUID CONTROL (USA)
SPECIFICATIONS
Part NumberP510689 ITEM 28
NSN5330-01-353-2633
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P510689 ITEM 28 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 4
A4-55Interchangeable
interchangeable cross-reference
interchangeable
526-5-202Interchangeable
interchangeable cross-reference
interchangeable
1201-450-Z3CInterchangeable
interchangeable cross-reference
interchangeable
120-02107-008Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P510689 ITEM 28?
P510689 ITEM 28 is a PACKING ASSEMBLY.
What parts can replace P510689 ITEM 28?
There are 4 known substitutes for P510689 ITEM 28: A4-55, 526-5-202, 1201-450-Z3C and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P510689 ITEM 28?
P510689 ITEM 28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-353-2633. 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