PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501-4675791 ITEM 12Slider,valve

Naval Ship Systems Command · NSN 4820-01-191-4206 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-191-4206 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-191-4206. Primary manufacturer part number: 501-4675791 ITEM 12.
Features
  • Slider,valve — FSC 4820
  • General Characteristics Item Description: NICKEL ALUMINUM BRONZE
  • 5 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Slider,valve, cataloged under National Stock Number 4820-01-191-4206, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-191-4206
Primary Part Number501-4675791 ITEM 12
Item NameSlider,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
General Characteristics Item DescriptionNICKEL ALUMINUM BRONZE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-01-094-96972621-827-05ASSY168 INTERCHANGEABLE
Plug,pipe
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-137-6055501-4675791 ITEM 25 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
4820-01-154-8125501-4675792 ITEM 1 INTERCHANGEABLE
Stem,fluid Valve
Naval Ship Systems Command
4820-01-154-812687643-9804 ITEM 2 INTERCHANGEABLE
Stem,fluid Valve
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-154-97504675791 ITEM 27 INTERCHANGEABLE
Retainer,valve
Naval Ship Systems Command
4820-01-155-3666501-4675791 ITEM 2 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
3040-01-156-4849501-4675791 ITEM 13 INTERCHANGEABLE
Shaft,valve
Naval Ship Systems Command
4820-01-157-2970501-4675791 ITEM 4 INTERCHANGEABLE
Plate,retaining,valve
Naval Ship Systems Command
5340-01-173-4600501-4675792 ITEM 17 INTERCHANGEABLE
Cover,access
Naval Ship Systems Command
4820-01-193-34494675790-0002 INTERCHANGEABLE
Valve,vent
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
87643-9802 ITEM 12 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
501-4675791 ITEM 12 PRIMARY Naval Ship Systems Command (USA)
501-4675791 Naval Ship Systems Command (USA)
4675791-12 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
87643-9802 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-01-094-9697INTERCHANGEABLE
PLUG,PIPE
2621-827-05ASSY168
4820-01-137-6055INTERCHANGEABLE
DISK,VALVE
501-4675791 ITEM 25
4820-01-154-8125INTERCHANGEABLE
STEM,FLUID VALVE
501-4675792 ITEM 1
4820-01-154-8126INTERCHANGEABLE
STEM,FLUID VALVE
87643-9804 ITEM 2
4820-01-154-9750INTERCHANGEABLE
RETAINER,VALVE
4675791 ITEM 27
4820-01-155-3666INTERCHANGEABLE
DISK,VALVE
501-4675791 ITEM 2
3040-01-156-4849INTERCHANGEABLE
SHAFT,VALVE
501-4675791 ITEM 13
4820-01-157-2970INTERCHANGEABLE
PLATE,RETAINING,VALVE
501-4675791 ITEM 4
5340-01-173-4600INTERCHANGEABLE
COVER,ACCESS
501-4675792 ITEM 17
4820-01-193-3449INTERCHANGEABLE
VALVE,VENT
4675790-0002

Frequently Asked Questions

What is NSN 4820-01-191-4206?

NSN 4820-01-191-4206 is a Slider,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-191-4206?

NSN 4820-01-191-4206 has 5 cross-referenced part numbers: 87643-9802 ITEM 12 (Electric Boat Corporation Div General Dynamics Electric Boat), 501-4675791 ITEM 12 (Naval Ship Systems Command), 501-4675791 (Naval Ship Systems Command), 4675791-12 (Electric Boat Corporation Div General Dynamics Electric Boat), 87643-9802 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-191-4206?

There are 10 known substitutes for 4820-01-191-4206: 4730-01-094-9697, 4820-01-137-6055, 4820-01-154-8125 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501-4675791 ITEM 12?

Key specifications for 501-4675791 ITEM 12: General Characteristics Item Description: NICKEL ALUMINUM BRONZE. 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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