PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6790.021.127 1-4INStem,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-056-1669 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-056-1669 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-056-1669. Primary manufacturer part number: A6790.021.127 1-4IN.
Features
  • Stem,valve — FSC 4820
  • 5 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
General Description

The Stem,valve, cataloged under National Stock Number 4820-01-056-1669, 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. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-056-1669
Primary Part NumberA6790.021.127 1-4IN
Item NameStem,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-067-5311A6790-021-127 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-138-6556 INTERCHANGEABLE
Stem,fluid Valve
4820-01-398-9852A6790-021-127CP INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
8585 PC36 1-4IN Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A6790.021.127 1-4IN Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6790.021.127 1-4IN PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
8585 PC36 1-4IN Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6790.021.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-01-067-5311INTERCHANGEABLE
STEM,FLUID VALVE
A6790-021-127
4820-01-138-6556INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-398-9852INTERCHANGEABLE
STEM,FLUID VALVE
A6790-021-127CP

Frequently Asked Questions

What is NSN 4820-01-056-1669?

NSN 4820-01-056-1669 is a Stem,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 4820-01-056-1669?

NSN 4820-01-056-1669 has 5 cross-referenced part numbers: 8585 PC36 1-4IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A6790.021.127 1-4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6790.021.127 1-4IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 8585 PC36 1-4IN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6790.021.127 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-056-1669?

There are 3 known substitutes for 4820-01-056-1669: 4820-01-067-5311, 4820-01-138-6556, 4820-01-398-9852. Verify interchangeability with system specifications before substitution.

What are the specifications of A6790.021.127 1-4IN?

Key specifications for A6790.021.127 1-4IN: End Item Identification: SHIP OHIO CLASS SSN (TRIDENT); COMBAT SYSTEM SUPPORT EQUIPMENT. 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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