PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

528-6409001 FIND 2Indicator,valve Opening

Naval Sea Systems Command · NSN 4820-01-434-1898 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-434-1898 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-434-1898. Primary manufacturer part number: 528-6409001 FIND 2.
Features
  • Indicator,valve Opening — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Indicator,valve Opening, cataloged under National Stock Number 4820-01-434-1898, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-434-1898
Primary Part Number528-6409001 FIND 2
Item NameIndicator,valve Opening
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-01-300-0449640466-1 INTERCHANGEABLE
Connector,receptacle,electrical
Te Connectivity Corporation
3040-01-417-7527528-6409001 FIND 5 INTERCHANGEABLE
Bracket,eye,rotating Shaft
Naval Sea Systems Command
3040-01-418-4090528-6409001 FIND 1 INTERCHANGEABLE
Shaft,shouldered
Naval Sea Systems Command
3010-01-418-8886528-6409001 FIND 9 INTERCHANGEABLE
Universal Joint,nonvehicular
Naval Sea Systems Command
3010-01-418-9513C-651-SM INTERCHANGEABLE
Universal Joint,nonvehicular
Lovejoy, Llc Div Lovejoy
4810-01-419-7056528-6409001 INTERCHANGEABLE
Actuator,hydraulic-Pneumatic,rot
Naval Sea Systems Command
3010-01-439-2757528-6409001 FIND 14 INTERCHANGEABLE
Universal Joint,nonvehicular
Naval Sea Systems Command
3040-01-465-12156409001 INTERCHANGEABLE
Shaft,straight
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
528-6409001 FIND 2 PRIMARY Naval Sea Systems Command (USA)
DA2500-3567 FIND 2 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
6409001 Naval Sea Systems Command (USA)
Related Parts
5935-01-300-0449INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
640466-1
3040-01-417-7527INTERCHANGEABLE
BRACKET,EYE,ROTATING SHAFT
528-6409001 FIND 5
3040-01-418-4090INTERCHANGEABLE
SHAFT,SHOULDERED
528-6409001 FIND 1
3010-01-418-8886INTERCHANGEABLE
UNIVERSAL JOINT,NONVEHICULAR
528-6409001 FIND 9
3010-01-418-9513INTERCHANGEABLE
UNIVERSAL JOINT,NONVEHICULAR
C-651-SM
4810-01-419-7056INTERCHANGEABLE
ACTUATOR,HYDRAULIC-PNEUMATIC,ROT
528-6409001
3010-01-439-2757INTERCHANGEABLE
UNIVERSAL JOINT,NONVEHICULAR
528-6409001 FIND 14
3040-01-465-1215INTERCHANGEABLE
SHAFT,STRAIGHT
6409001

Frequently Asked Questions

What is NSN 4820-01-434-1898?

NSN 4820-01-434-1898 is a Indicator,valve Opening, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-434-1898?

NSN 4820-01-434-1898 has 3 cross-referenced part numbers: 528-6409001 FIND 2 (Naval Sea Systems Command), DA2500-3567 FIND 2 (Huntington Ingalls Inc Div Newport News Shipbuilding), 6409001 (Naval Sea Systems Command).

What NSN replaces 4820-01-434-1898?

There are 8 known substitutes for 4820-01-434-1898: 5935-01-300-0449, 3040-01-417-7527, 3040-01-418-4090 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 528-6409001 FIND 2?

Key specifications for 528-6409001 FIND 2: End Item Identification: SEAWOLF CLASS SSN. 1 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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