PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501-4675698 ITEM 8Plate,stop,valve

Naval Ship Systems Command · NSN 4820-01-103-0157 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-103-0157 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-103-0157. Primary manufacturer part number: 501-4675698 ITEM 8.
Features
  • Plate,stop,valve — FSC 4820
  • General Characteristics Item Description: NICKEL COPPER ALLOY;IRREGULAR SHAPE;0.750 IN. THK;4.250 IN. LG;W/FOUR HOLES 1.000 IN. DIA;LOCATED 1.500 IN. C TO C ALONG THE LG AND 1.750 IN. C TO C ALONG THE W IN
  • 3 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Plate,stop,valve, cataloged under National Stock Number 4820-01-103-0157, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-103-0157
Primary Part Number501-4675698 ITEM 8
Item NamePlate,stop,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER ALLOY;IRREGULAR SHAPE;0.750 IN. THK;4.250 IN. LG;W/FOUR HOLES 1.000 IN. DIA;LOCATED 1.500 IN. C TO C ALONG THE LG AND 1.750 IN. C TO C ALONG THE W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-01-096-2021501-4675698 ITEM 14 INTERCHANGEABLE
Plate,drive,gear,lock
Naval Ship Systems Command
4820-01-103-0158501-4675698 ITEM 13 INTERCHANGEABLE
Rod Retainer,valve
Naval Ship Systems Command
4820-01-103-3325501-4675698 ITEM 35 INTERCHANGEABLE
Shield,dust
Bright Lights Usa, Inc Dba Blusa Defense Manufacturing
4820-01-121-19094675698-0020 INTERCHANGEABLE
Shroud,valve
Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-121-199387643-7504 ITEM 12 INTERCHANGEABLE
Connecting Link,rigid
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-121-289887643-7504 ITEM 9 INTERCHANGEABLE
Drum,valve
Electric Boat Corporation Div General Dynamics Electric Boat
3020-01-123-3107501-4675698 ITEM 15 INTERCHANGEABLE
Stop,gear
Naval Ship Systems Command
4820-01-130-5559501-4675698 ITEM 16 INTERCHANGEABLE
Rod,vent Valve
Naval Ship Systems Command
3020-01-149-7908501-4675698 ITEM 5-6-7 INTERCHANGEABLE
Gear Set
Naval Ship Systems Command
4820-01-191-59874675696-0001 INTERCHANGEABLE
Valve,vent
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
501-4675698 ITEM 8 PRIMARY Naval Ship Systems Command (USA)
501-4675696 Naval Ship Systems Command (USA)
501-4675698 Naval Ship Systems Command (USA)
Related Parts
3020-01-096-2021INTERCHANGEABLE
PLATE,DRIVE,GEAR,LOCK
501-4675698 ITEM 14
4820-01-103-0158INTERCHANGEABLE
ROD RETAINER,VALVE
501-4675698 ITEM 13
4820-01-103-3325INTERCHANGEABLE
SHIELD,DUST
501-4675698 ITEM 35
4820-01-121-1909INTERCHANGEABLE
SHROUD,VALVE
4675698-0020
3040-01-121-1993INTERCHANGEABLE
CONNECTING LINK,RIGID
87643-7504 ITEM 12
4820-01-121-2898INTERCHANGEABLE
DRUM,VALVE
87643-7504 ITEM 9
3020-01-123-3107INTERCHANGEABLE
STOP,GEAR
501-4675698 ITEM 15
4820-01-130-5559INTERCHANGEABLE
ROD,VENT VALVE
501-4675698 ITEM 16
3020-01-149-7908INTERCHANGEABLE
GEAR SET
501-4675698 ITEM 5-6-7
4820-01-191-5987INTERCHANGEABLE
VALVE,VENT
4675696-0001
3020-01-257-1559INTERCHANGEABLE
GEAR,DRIVE,VENT VALVE
501-4675698 ITEM 54
5365-01-257-1560INTERCHANGEABLE
BUSHING,VENT VALVE
501-4675698 ITEM 52

Frequently Asked Questions

What is NSN 4820-01-103-0157?

NSN 4820-01-103-0157 is a Plate,stop,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-103-0157?

NSN 4820-01-103-0157 has 3 cross-referenced part numbers: 501-4675698 ITEM 8 (Naval Ship Systems Command), 501-4675696 (Naval Ship Systems Command), 501-4675698 (Naval Ship Systems Command).

What NSN replaces 4820-01-103-0157?

There are 12 known substitutes for 4820-01-103-0157: 3020-01-096-2021, 4820-01-103-0158, 4820-01-103-3325 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501-4675698 ITEM 8?

Key specifications for 501-4675698 ITEM 8: General Characteristics Item Description: NICKEL COPPER ALLOY;IRREGULAR SHAPE;0.750 IN. THK;4.250 IN. LG;W/FOUR HOLES 1.000 IN. DIA;LOCATED 1.500 IN. C TO C ALONG THE LG AND 1.750 IN. C TO C ALONG THE W IN. 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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