PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A7458.001.128Disk,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-232-7252 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-232-7252 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-232-7252. Primary manufacturer part number: A7458.001.128.
Features
  • Disk,valve — FSC 4820
  • Material: NICKEL ALLOY
  • Outside Diameter: 4.467 INCHES NOMINAL IN
  • Pressure Rating: 5.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Temp Rating: 425.0 FAHRENHEIT NOMINAL DEGF
  • Shoulder Height: 0.625 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-232-7252, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 5 verified specifications, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-232-7252
Primary Part NumberA7458.001.128
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialNICKEL ALLOY
Outside Diameter4.467 INCHES NOMINAL IN
Pressure Rating5.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Temp Rating425.0 FAHRENHEIT NOMINAL DEGF
Shoulder Height0.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6920-00-025-6297 INTERCHANGEABLE
Roller
6685-00-057-1404J0642J-001 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6680-00-135-894020-104 INTERCHANGEABLE
Indicator,sight,liquid
Aalberts Integrated Piping Systems Americas, Inc.
5305-00-206-9061CL4KHS INTERCHANGEABLE
Thumbscrew
Carr Lane Manufacturing Co
5133-00-228-135314750 INTERCHANGEABLE
Drill,twist
Viking Drill & Tool, Inc.
2520-00-388-4197M279X INTERCHANGEABLE
Spider,universal Joint,vehicular
Meritor Heavy Vehicle Systems, Llc
5999-00-455-484901-0102-0499 INTERCHANGEABLE
Wire Mesh,knitted
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5310-00-467-9941 INTERCHANGEABLE
Nut,self-Locking,hexagon
3431-00-567-165113N24 INTERCHANGEABLE
Collet,welding Torch
Welding Nozzle Intl Inc
5940-00-983-6065 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
20104 PIECE 35 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A7458.001.128 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20104 PIECE 35 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A7458-001-128 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A7458.001.128 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20104 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
6920-00-025-6297INTERCHANGEABLE
ROLLER
6685-00-057-1404INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
J0642J-001
6680-00-135-8940INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
20-104
5305-00-206-9061INTERCHANGEABLE
THUMBSCREW
CL4KHS
5133-00-228-1353INTERCHANGEABLE
DRILL,TWIST
14750
2520-00-388-4197INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
M279X
5999-00-455-4849INTERCHANGEABLE
WIRE MESH,KNITTED
01-0102-0499
5310-00-467-9941INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
3431-00-567-1651INTERCHANGEABLE
COLLET,WELDING TORCH
13N24
5940-00-983-6065INTERCHANGEABLE
TERMINAL BOARD
5345-01-226-4749INTERCHANGEABLE
STRIP
20104
6515-01-322-4381INTERCHANGEABLE
TUBE,DRAINAGE,SURGICAL
20-104

Frequently Asked Questions

What is NSN 4820-01-232-7252?

NSN 4820-01-232-7252 is a Disk,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-232-7252?

NSN 4820-01-232-7252 has 6 cross-referenced part numbers: 20104 PIECE 35 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A7458.001.128 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20104 PIECE 35 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A7458-001-128 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A7458.001.128 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 1 more.

What NSN replaces 4820-01-232-7252?

There are 12 known substitutes for 4820-01-232-7252: 6920-00-025-6297, 6685-00-057-1404, 6680-00-135-8940 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A7458.001.128?

Key specifications for A7458.001.128: Material: NICKEL ALLOY; End Item Identification: KUNKLE 2.500 IN. SAFETY RELIEF VALVE TYPE 1741-1751 IN; Outside Diameter: 4.467 INCHES NOMINAL IN; Pressure Rating: 5.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 7 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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