PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4675791 ITEM 27Retainer,valve

Naval Ship Systems Command · NSN 4820-01-154-9750 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-154-9750 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-154-9750. Primary manufacturer part number: 4675791 ITEM 27.
Features
  • Retainer,valve — FSC 4820
  • General Characteristics Item Description: NICKEL COPPER,OD 3.000,2 HOLES 0.127 DIA
  • 6 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,valve, cataloged under National Stock Number 4820-01-154-9750, 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 6 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
NSN4820-01-154-9750
Primary Part Number4675791 ITEM 27
Item NameRetainer,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER,OD 3.000,2 HOLES 0.127 DIA
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
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
4820-01-154-9749501-4675791 ITEM 14 INTERCHANGEABLE
Stem,fluid 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
4820-01-191-4206501-4675791 ITEM 12 INTERCHANGEABLE
Slider,valve
Naval Ship Systems Command
3040-01-718-831236-05-7848 INTERCHANGEABLE
Extension Shaft
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
501-4675791 Naval Ship Systems Command (USA)
501-4675791 ITEM 27 Naval Ship Systems Command (USA)
4675791-0027 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
36-05-7848 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
4675791 ITEM 27 PRIMARY Naval Ship Systems Command (USA)
4675791 Naval Ship Systems Command (USA)
Related Parts
4730-01-094-9697INTERCHANGEABLE
PLUG,PIPE
2621-827-05ASSY168
4820-01-137-6055INTERCHANGEABLE
DISK,VALVE
501-4675791 ITEM 25
4820-01-154-9749INTERCHANGEABLE
STEM,FLUID VALVE
501-4675791 ITEM 14
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
4820-01-191-4206INTERCHANGEABLE
SLIDER,VALVE
501-4675791 ITEM 12
3040-01-718-8312INTERCHANGEABLE
EXTENSION SHAFT
36-05-7848

Frequently Asked Questions

What is NSN 4820-01-154-9750?

NSN 4820-01-154-9750 is a Retainer,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-154-9750?

NSN 4820-01-154-9750 has 6 cross-referenced part numbers: 501-4675791 (Naval Ship Systems Command), 501-4675791 ITEM 27 (Naval Ship Systems Command), 4675791-0027 (Electric Boat Corporation Div General Dynamics Electric Boat), 36-05-7848 (Electric Boat Corporation Div General Dynamics Electric Boat), 4675791 ITEM 27 (Naval Ship Systems Command) and 1 more.

What NSN replaces 4820-01-154-9750?

There are 8 known substitutes for 4820-01-154-9750: 4730-01-094-9697, 4820-01-137-6055, 4820-01-154-9749 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4675791 ITEM 27?

Key specifications for 4675791 ITEM 27: General Characteristics Item Description: NICKEL COPPER,OD 3.000,2 HOLES 0.127 DIA. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com