PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W433Stud,valve

Flowserve Corporation Div Flowserve Us Inc · NSN 4470-00-889-2456 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-889-2456 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-889-2456. Primary manufacturer part number: W433.
Features
  • Stud,valve — FSC 4470
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 5 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 Stud,valve, cataloged under National Stock Number 4470-00-889-2456, 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 5 commercial cross-references from 3 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
NSN4470-00-889-2456
Primary Part NumberW433
Item NameStud,valve
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6740-00-025-262011-436 INTERCHANGEABLE
Lock,pedal
Pakon Inc Dba Impak Division
5307-01-694-3483 INTERCHANGEABLE
Stud,plain
Cross-Reference Index
Part NumberManufacturer
W433 Flowserve Corporation Div Flowserve Us Inc (USA)
820-4384265 Naval Ship Systems Command (USA)
820-4383466-16 Naval Sea Systems Command (USA)
820-4384265 Naval Sea Systems Command (USA)
W436 Flowserve Corporation Div Flowserve Us Inc (USA)
Related Parts
6740-00-025-2620INTERCHANGEABLE
LOCK,PEDAL
11-436
5307-01-694-3483INTERCHANGEABLE
STUD,PLAIN

Frequently Asked Questions

What is NSN 4470-00-889-2456?

NSN 4470-00-889-2456 is a Stud,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 4470-00-889-2456?

NSN 4470-00-889-2456 has 5 cross-referenced part numbers: W433 (Flowserve Corporation Div Flowserve Us Inc), 820-4384265 (Naval Ship Systems Command), 820-4383466-16 (Naval Sea Systems Command), 820-4384265 (Naval Sea Systems Command), W436 (Flowserve Corporation Div Flowserve Us Inc).

What NSN replaces 4470-00-889-2456?

There are 2 known substitutes for 4470-00-889-2456: 6740-00-025-2620, 5307-01-694-3483. Verify interchangeability with system specifications before substitution.

What are the specifications of W433?

Key specifications for W433: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 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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