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Technical Data Sheet
NA1781 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, overall_length: 4.8750 INCHES NOMINAL IN, special_features: USED ON BUFFALO PUMP MODEL 16 VHSM CENTRIFUGAL PUMPS, body_inside_diameter: 3.6250 INCHES NOMINAL IN, body_outside_diameter: 4.0000 INCHES NOMINAL IN, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-423-6527, 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
NA1781
NSN: 4320-01-423-6527
FSC: 4320
CAGE: 83130 — AIR & LIQUID SYSTEMS CORPORATION DBA BUFFALO PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
overall_length4.8750 INCHES NOMINAL IN
special_featuresUSED ON BUFFALO PUMP MODEL 16 VHSM CENTRIFUGAL PUMPS
body_inside_diameter3.6250 INCHES NOMINAL IN
body_outside_diameter4.0000 INCHES NOMINAL IN
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
material_document_and_classificationASTM B164,ALLOY 400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4320-01-423-6527
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN NA1781 MFR IMPELLER,PUMP,CENTRIFU
KEY FEATURES
BODY OUTSIDE DIAMETER: 4.0000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B164,ALLOY 400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER: 3.6250 INCHES NOMINAL IN
MATERIAL: NICKEL ALLOY 400 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER4.0000 INCHES NOMINAL IN
OVERALL LENGTH4.8750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B164,ALLOY 400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
BODY INSIDE DIAMETER3.6250 INCHES NOMINAL IN
MATERIALNICKEL ALLOY 400 OVERALL
SPECIAL FEATURESUSED ON BUFFALO PUMP MODEL 16 VHSM CENTRIFUGAL PUMPS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
802090-1Interchangeable
interchangeable cross-reference
interchangeable
NA1775Interchangeable
interchangeable cross-reference
interchangeable
NA1798Interchangeable
interchangeable cross-reference
interchangeable
9-0566-01Interchangeable
interchangeable cross-reference
interchangeable
6823-42Interchangeable
interchangeable cross-reference
interchangeable
PL.16VHSM-1 ITEM 18AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NA1781?
NA1781 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace NA1781?
There are 14 known substitutes for NA1781: 802090-1, NA1775, NA1798 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NA1781?
NA1781 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-423-6527. This indicates validated use in U.S. government and defense supply chains.
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