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Technical Data Sheet
PartsTable / COMPONENT / 81959
81959 ✓ 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 ACCUMULATOR,HYDRAULIC is a the manufacturer industrial component. Key specifications include shape: RECTANGLE, special_features: NHA IS HYDRAULIC CONTROL, end_item_identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80, part_name_assigned_by_controlling_agency: ACCUMULATOR ASSEMBLY - SPRING TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-312-4939, 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
81959
NSN: 5340-01-312-4939
FSC: 5340
CAGE: 59618 — ALLIANCE LAUNDRY SYSTEMS LLC (USA)
SPECIFICATIONS
shapeRECTANGLE
special_featuresNHA IS HYDRAULIC CONTROL
end_item_identification3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80
part_name_assigned_by_controlling_agencyACCUMULATOR ASSEMBLY - SPRING TYPE
NSN5340-01-312-4939
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81959 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
31149-840PC840Interchangeable
interchangeable cross-reference
interchangeable
2409-965503ALTGPC840Interchangeable
interchangeable cross-reference
interchangeable
K56J735REV2Interchangeable
interchangeable cross-reference
interchangeable
81386Interchangeable
interchangeable cross-reference
interchangeable
ZHVY0085-1Interchangeable
interchangeable cross-reference
interchangeable
B107.600Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81959?
81959 is a ACCUMULATOR,HYDRAULIC.
What parts can replace 81959?
There are 9 known substitutes for 81959: 31149-840PC840, 2409-965503ALTGPC840, K56J735REV2 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81959?
81959 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-312-4939. 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