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Technical Data Sheet
PartsTable / COMPONENT / 3-4-55SEG
3-4-55SEG ✓ 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 GASKET 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 5330-00-908-7952, 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
3-4-55SEG
NSN: 5330-00-908-7952
FSC: 5330
CAGE: 85578 — MARK CONTROLS CORP PACIFIC VALVES DIV (USA)
SPECIFICATIONS
Part Number3-4-55SEG
NSN5330-00-908-7952
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-4-55SEG 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
16217Interchangeable
interchangeable cross-reference
interchangeable
670154Interchangeable
interchangeable cross-reference
interchangeable
90-55103Interchangeable
interchangeable cross-reference
interchangeable
20155Interchangeable
interchangeable cross-reference
interchangeable
20155PC45Interchangeable
interchangeable cross-reference
interchangeable
5938666Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-4-55SEG?
3-4-55SEG is a GASKET.
What parts can replace 3-4-55SEG?
There are 9 known substitutes for 3-4-55SEG: 16217, 670154, 90-55103 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-4-55SEG?
3-4-55SEG is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-908-7952. 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