PartsTable
Technical Data Sheet
161-556 ✓ 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 CYLINDER 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 5330-00-915-3719, 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
161-556
NSN: 5330-00-915-3719
FSC: 5330
CAGE: 25980 — GRACO INC. (USA)
SPECIFICATIONS
Part Number161-556
NSN5330-00-915-3719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 161-556 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 7
115555Interchangeable
interchangeable cross-reference
interchangeable
EE42462Interchangeable
interchangeable cross-reference
interchangeable
020064Interchangeable
interchangeable cross-reference
interchangeable
PFT2AWHT1000Interchangeable
interchangeable cross-reference
interchangeable
48-00100-829Interchangeable
interchangeable cross-reference
interchangeable
4246-02277Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 161-556?
161-556 is a CYLINDER GASKET.
What parts can replace 161-556?
There are 7 known substitutes for 161-556: 115555, EE42462, 020064 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 161-556?
161-556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-915-3719. This indicates validated use in U.S. government and defense supply chains.
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