PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A12-7945-053-178Stem,fluid Valve

Velan Valve Corp. · NSN 4820-01-437-3054 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-437-3054 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-437-3054. Primary manufacturer part number: A12-7945-053-178.
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Type for Which Designed: GLOBE
  • Features Provided: INTEGRAL DISK
  • Material: COPPER ALLOY
  • Valve Size for Which Designed: 3.500 INCHES AND 4.000 INCHES IN
  • Stem Actuating End Type: THREADED EXTERNALLY
  • 3 verified cross-references
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-437-3054, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 5 verified specifications, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-437-3054
Primary Part NumberA12-7945-053-178
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Valve Type for Which DesignedGLOBE
Features ProvidedINTEGRAL DISK
MaterialCOPPER ALLOY
Valve Size for Which Designed3.500 INCHES AND 4.000 INCHES IN
Stem Actuating End TypeTHREADED EXTERNALLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-01-156-4876A12-7945-056-209 INTERCHANGEABLE
Stem and Disc Assembly
Velan Valve Corp.
5310-01-466-409288-22790-5 INTERCHANGEABLE
Nut,plain,hexagon
Department of Defense Project Manager-Mobile Electric Power
4820-01-468-83867915-078-063 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
4820-01-468-84247945-053-002-S INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
4820-01-468-84318255-000-061 INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
4820-01-469-2199B12-2074P-02TS,CDS244978GO1 IT31 INTERCHANGEABLE
Valve,globe
Velan Valve Corp.
4820-01-470-57509553-003-065 INTERCHANGEABLE
Disk Pad,valve
Velan Valve Corp.
4820-01-493-74198265-050-031 INTERCHANGEABLE
Cap,valve
Velan Valve Corp.
4820-01-545-2266 INTERCHANGEABLE
Valve,relief,pressure and Temper
Cross-Reference Index
Part NumberManufacturer
7850-013 Velan Valve Corp. (USA)
A12-7945-053-178 PRIMARY Velan Valve Corp. (USA)
7850-013 ITEM 48B Velan Valve Corp. (USA)
Related Parts
4820-01-156-4876INTERCHANGEABLE
STEM AND DISC ASSEMBLY
A12-7945-056-209
5310-01-466-4092INTERCHANGEABLE
NUT,PLAIN,HEXAGON
88-22790-5
4820-01-468-8386INTERCHANGEABLE
STEM,FLUID VALVE
7915-078-063
4820-01-468-8424INTERCHANGEABLE
DISK,VALVE
7945-053-002-S
4820-01-468-8431INTERCHANGEABLE
DISK,VALVE
8255-000-061
4820-01-469-2199INTERCHANGEABLE
VALVE,GLOBE
B12-2074P-02TS,CDS244978GO1 IT31
4820-01-470-5750INTERCHANGEABLE
DISK PAD,VALVE
9553-003-065
4820-01-493-7419INTERCHANGEABLE
CAP,VALVE
8265-050-031
4820-01-545-2266INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER

Frequently Asked Questions

What is NSN 4820-01-437-3054?

NSN 4820-01-437-3054 is a Stem,fluid Valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-437-3054?

NSN 4820-01-437-3054 has 3 cross-referenced part numbers: 7850-013 (Velan Valve Corp.), A12-7945-053-178 (Velan Valve Corp.), 7850-013 ITEM 48B (Velan Valve Corp.).

What NSN replaces 4820-01-437-3054?

There are 9 known substitutes for 4820-01-437-3054: 4820-01-156-4876, 5310-01-466-4092, 4820-01-468-8386 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A12-7945-053-178?

Key specifications for A12-7945-053-178: Valve Type for Which Designed: GLOBE; Features Provided: INTEGRAL DISK; End Item Identification: EMORY S. LAND CLASS AS; Material: COPPER ALLOY. 6 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