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51740C576 — SHAFT,VALVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

51740C576: SHAFT,VALVE.

The SHAFT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400, features_provided: LOWER STEM, stem_actuating_end_type: SQUARE, valve_size_for_which_designed: 10.000 INCHES AND 12.000 INCHES IN, valve_type_for_which_designed: BUTTERFLY, material_document_and_classification: ASTM B164 CLASS A ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-138-1985, 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
51740C576
NSN: 3040-01-138-1985
NIINs: 011381985, 012814477
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 91363 — NORRISEAL NORRIS VALUES DIV DBA DOVER CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400
features_providedLOWER STEM
stem_actuating_end_typeSQUARE
valve_size_for_which_designed10.000 INCHES AND 12.000 INCHES IN
valve_type_for_which_designedBUTTERFLY
material_document_and_classificationASTM B164 CLASS A ASSN STD SINGLE MATERIAL RESPONSE
NSN3040-01-138-1985
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,VALVE TITLE COMPONENT PN 51740C576 MFR SHAFT,VALVE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONDOVER CORP MODEL R2030-64A-A A
SUBSTITUTES & CROSS-REFERENCES 10
911-519Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
911-518 REF 4 12 INReference document
Same NSN cross-reference
Reference document — Secondary reference
911-519 PART 740C576Reference document
Same NSN cross-reference
Reference document — Secondary reference
911-511 PIECE 4 740C576Reference document
Same NSN cross-reference
Reference document — Secondary reference
911-518 REF 4 10 INReference document
Same NSN cross-reference
Reference document — Secondary reference
911-417 PIECE 4 PART 740C576Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 51740C576?
51740C576 is a SHAFT,VALVE.
What parts can replace 51740C576?
There are 10 known substitutes for 51740C576: 911-519, 911-518 REF 4 12 IN, 911-519 PART 740C576 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51740C576?
51740C576 is cataloged in the U.S. Government catalog under NSN 3040-01-138-1985. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.