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84278 — PISTON,LINEAR ACTUATING CYLINDER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

84278: PISTON,LINEAR ACTUATING CYLINDER.

PISTON,LINEAR ACTUATING CYLINDER. Key specifications include end_item_identification: ARLEIGH BURKE CLASS DDG. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-202-2017, 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
84278
NSN: 5330-00-202-2017
NIINs: 002022017, 014129603
FSC: 5330 — Packing and Gasket Materials
CAGE: 65254 — BRUNSWICK CORP US MARINE DIV (USA)
SPECIFICATIONS
end_item_identificationARLEIGH BURKE CLASS DDG
NSN5330-00-202-2017
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 84278 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
SUBSTITUTES & CROSS-REFERENCES 1
9B84278Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 84278?
84278 is a PISTON,LINEAR ACTUATING CYLINDER.
What parts can replace 84278?
There is 1 known substitute for 84278: 9B84278. Substitute compatibility should be verified for your specific system.
What is the NSN for 84278?
84278 is cataloged in the U.S. Government catalog under NSN 5330-00-202-2017. This indicates validated use in U.S. government and defense supply chains.
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