556-6985454-4B — ROD,PISTON,HYDRAULIC ACCUMULATOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

556-6985454-4B: ROD,PISTON,HYDRAULIC ACCUMULATOR.

ROD,PISTON,HYDRAULIC ACCUMULATOR. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 43.560 INCHES NOMINAL IN, overall_diameter: 3.245 INCHES MINIMUM AND 3.247 INCHES MAXIMUM IN, end_item_identification: ACCUMULATOR ASSEMBLY; LOS ANGLES SSN 688 SUBMARINE., part_name_assigned_by_controlling_agency: TAILROD,PISTON. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-500-8024, 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

556-6985454-4B

NSN: 3040-01-500-8024
NIINs: 015008024, 016724357
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING
overall_length	43.560 INCHES NOMINAL IN
overall_diameter	3.245 INCHES MINIMUM AND 3.247 INCHES MAXIMUM IN
special_features	PISTON ROD IS HOLLOW WITH A 1.250 INCH INSIDE DIAMETER. BOTH ENDS HAVE A CROSS SECTION THRU HOLE AND ROD ATTACHES TO THE ACCUMULATOR PISTON. IN
end_item_identification	ACCUMULATOR ASSEMBLY; LOS ANGLES SSN 688 SUBMARINE.
part_name_assigned_by_controlling_agency	TAILROD,PISTON
NSN	3040-01-500-8024

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 3.245 INCHES MINIMUM AND 3.247 INCHES MAXIMUM IN

•

MATERIAL: STEEL CORROSION RESISTING

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	3.245 INCHES MINIMUM AND 3.247 INCHES MAXIMUM IN
OVERALL LENGTH	43.560 INCHES NOMINAL IN
SPECIAL FEATURES	PISTON ROD IS HOLLOW WITH A 1.250 INCH INSIDE DIAMETER. BOTH ENDS HAVE A CROSS SECTION THRU HOLE AND ROD ATTACHES TO THE ACCUMULATOR PISTON. IN
PART NAME ASSIGNED BY CONTROLLING AGENCY	TAILROD,PISTON
END ITEM IDENTIFICATION	ACCUMULATOR ASSEMBLY; LOS ANGLES SSN 688 SUBMARINE.
MATERIAL	STEEL CORROSION RESISTING

SUBSTITUTES & CROSS-REFERENCES 2

H642-6930-4BSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

556-6985454Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 556-6985454-4B?

556-6985454-4B is a ROD,PISTON,HYDRAULIC ACCUMULATOR.

What parts can replace 556-6985454-4B?

There are 2 known substitutes for 556-6985454-4B: H642-6930-4B, 556-6985454. Substitute compatibility should be verified for your specific system.

What is the NSN for 556-6985454-4B?

556-6985454-4B is cataloged in the U.S. Government catalog under NSN 3040-01-500-8024. This indicates validated use in U.S. government and defense supply chains.

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556-6985454-4B — ROD,PISTON,HYDRAULIC ACCUMULATOR

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