PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C4759Disk,valve

Flowserve Corporation Div Flowserve Us Inc · NSN 4470-00-889-2455 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-889-2455 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-889-2455. Primary manufacturer part number: C4759.
Features
  • Disk,valve — FSC 4470
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Flowserve Corporation Div Flowserve Us Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk,valve, cataloged under National Stock Number 4470-00-889-2455, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4470-00-889-2455
Primary Part NumberC4759
Item NameDisk,valve
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-088-0897C4759B INTERCHANGEABLE
Seat,valve
Griswold Industries Dba Cla-Val Co
4820-01-100-1946B2579 INTERCHANGEABLE
Disk,valve
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
C4759 Flowserve Corporation Div Flowserve Us Inc (USA)
6774PC11 Flowserve Corporation Div Flowserve Us Inc (USA)
820-4384246 Naval Sea Systems Command (USA)
820-4383466-7 Naval Sea Systems Command (USA)
Related Parts
4820-01-088-0897INTERCHANGEABLE
SEAT,VALVE
C4759B
4820-01-100-1946INTERCHANGEABLE
DISK,VALVE
B2579

Frequently Asked Questions

What is NSN 4470-00-889-2455?

NSN 4470-00-889-2455 is a Disk,valve, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 4470 (No Item Name Available). Status: active.

What are the part numbers for NSN 4470-00-889-2455?

NSN 4470-00-889-2455 has 4 cross-referenced part numbers: C4759 (Flowserve Corporation Div Flowserve Us Inc), 6774PC11 (Flowserve Corporation Div Flowserve Us Inc), 820-4384246 (Naval Sea Systems Command), 820-4383466-7 (Naval Sea Systems Command).

What NSN replaces 4470-00-889-2455?

There are 2 known substitutes for 4470-00-889-2455: 4820-01-088-0897, 4820-01-100-1946. Verify interchangeability with system specifications before substitution.

What are the specifications of C4759?

Key specifications for C4759: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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