H642-6930-4A — ROD,PISTON,HYDRAULIC ACCUMULATOR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

H642-6930-4A: ROD,PISTON,HYDRAULIC ACCUMULATOR.

ROD,PISTON,HYDRAULIC ACCUMULATOR. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 43.560 INCHES NOMINAL IN, overall_diameter: 2.746 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN, end_item_identification: ACCUMULATOR ASSEMBLY; WS: SEAWOLF CLASS SUBMARINE., part_name_assigned_by_controlling_agency: TAILROD,PISTON. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-500-7984, 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

H642-6930-4A

NSN: 3040-01-500-7984
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING
overall_length	43.560 INCHES NOMINAL IN
overall_diameter	2.746 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN
special_features	PISTON ROD IS HOLLOW WITH A 1.25 INCH INSIDE DIAMETER.BOTH ENDS HAVE A CROSS SECTION THRU HOLE. SHOULDERED ROD ATTACHES TO THE ACCUMULATOR PISTON. IN
end_item_identification	ACCUMULATOR ASSEMBLY; WS: SEAWOLF CLASS SUBMARINE.
part_name_assigned_by_controlling_agency	TAILROD,PISTON
NSN	3040-01-500-7984

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 2.746 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN

•

MATERIAL: STEEL CORROSION RESISTING

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	2.746 INCHES MINIMUM AND 2.748 INCHES MAXIMUM IN
OVERALL LENGTH	43.560 INCHES NOMINAL IN
SPECIAL FEATURES	PISTON ROD IS HOLLOW WITH A 1.25 INCH INSIDE DIAMETER.BOTH ENDS HAVE A CROSS SECTION THRU HOLE. SHOULDERED ROD ATTACHES TO THE ACCUMULATOR PISTON. IN
PART NAME ASSIGNED BY CONTROLLING AGENCY	TAILROD,PISTON
END ITEM IDENTIFICATION	ACCUMULATOR ASSEMBLY; WS: SEAWOLF CLASS SUBMARINE.
MATERIAL	STEEL CORROSION RESISTING

SUBSTITUTES & CROSS-REFERENCES 1

556-6985454Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is H642-6930-4A?

H642-6930-4A is a ROD,PISTON,HYDRAULIC ACCUMULATOR.

What parts can replace H642-6930-4A?

There is 1 known substitute for H642-6930-4A: 556-6985454. Substitute compatibility should be verified for your specific system.

What is the NSN for H642-6930-4A?

H642-6930-4A is cataloged in the U.S. Government catalog under NSN 3040-01-500-7984. This indicates validated use in U.S. government and defense supply chains.

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H642-6930-4A — ROD,PISTON,HYDRAULIC ACCUMULATOR

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