PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6790.026.127Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-127-2662 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-127-2662 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-127-2662. Primary manufacturer part number: A6790.026.127.
Features
  • Stem,fluid Valve — FSC 4820
  • Largest Outside Diameter: 0.500 INCHES NOMINAL IN
  • Valve Size for Which Designed: 0.500 INCHES IN
  • Valve Model Number for Which Designed: TYPE 1741, 5-150 PSIG
  • Material Document and Classification: ASTM B-164 ASSN STD SINGLE MATERIAL RESPONSE
  • Valve Type for Which Designed: RELIEF
  • Material: NICKEL ALLOY
  • Stem Actuating End Type: THREADED EXTERNALLY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-127-2662, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4820-01-127-2662
Primary Part NumberA6790.026.127
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Largest Outside Diameter0.500 INCHES NOMINAL IN
Valve Size for Which Designed0.500 INCHES IN
Valve Model Number for Which DesignedTYPE 1741, 5-150 PSIG
Material Document and ClassificationASTM B-164 ASSN STD SINGLE MATERIAL RESPONSE
Valve Type for Which DesignedRELIEF
MaterialNICKEL ALLOY
Stem Actuating End TypeTHREADED EXTERNALLY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-035-8706 INTERCHANGEABLE
Contact,electrical
6130-00-132-1839672-1001-000 INTERCHANGEABLE
Power Supply
Magnatronix Corporation
5133-00-228-1374 INTERCHANGEABLE
Drill,twist
5315-00-663-3169 INTERCHANGEABLE
Key,machine
5330-00-758-069520125 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
3040-01-092-207870400-01250-046 INTERCHANGEABLE
Connecting Link,rigid
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5365-01-222-427420125 INTERCHANGEABLE
Plug,machine Thread
Parker Hannifin Corporation Div Hydraulic Systems Division
2920-01-272-75811105473 INTERCHANGEABLE
Generator,engine Accessory
Delco Remy America Inc
4920-01-300-1916 INTERCHANGEABLE
Test Program Set
6060-01-348-502920125 INTERCHANGEABLE
Splice,fiber Optic Conductor
Norland Products Inc.
Cross-Reference Index
Part NumberManufacturer
20125 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6790.026.127 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20125 PIECE 8 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6790.026.127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
20125 PIECE 8 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5999-00-035-8706INTERCHANGEABLE
CONTACT,ELECTRICAL
6130-00-132-1839INTERCHANGEABLE
POWER SUPPLY
672-1001-000
5133-00-228-1374INTERCHANGEABLE
DRILL,TWIST
5315-00-663-3169INTERCHANGEABLE
KEY,MACHINE
5330-00-758-0695INTERCHANGEABLE
SEAL,PLAIN ENCASED
20125
3040-01-092-2078INTERCHANGEABLE
CONNECTING LINK,RIGID
70400-01250-046
5365-01-222-4274INTERCHANGEABLE
PLUG,MACHINE THREAD
20125
2920-01-272-7581INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
1105473
4920-01-300-1916INTERCHANGEABLE
TEST PROGRAM SET
6060-01-348-5029INTERCHANGEABLE
SPLICE,FIBER OPTIC CONDUCTOR
20125
5310-01-418-3719INTERCHANGEABLE
WASHER,LOCK
20-12-5
4730-01-515-7684INTERCHANGEABLE
FITTING,LUBRICANT PRESSURE RELIE
20125

Frequently Asked Questions

What is NSN 4820-01-127-2662?

NSN 4820-01-127-2662 is a Stem,fluid 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 4820-01-127-2662?

NSN 4820-01-127-2662 has 5 cross-referenced part numbers: 20125 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6790.026.127 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20125 PIECE 8 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6790.026.127 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20125 PIECE 8 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-127-2662?

There are 12 known substitutes for 4820-01-127-2662: 5999-00-035-8706, 6130-00-132-1839, 5133-00-228-1374 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A6790.026.127?

Key specifications for A6790.026.127: Largest Outside Diameter: 0.500 INCHES NOMINAL IN; Valve Size for Which Designed: 0.500 INCHES IN; Overall Length: 6.875 INCHES NOMINAL IN; Valve Model Number for Which Designed: TYPE 1741, 5-150 PSIG. 8 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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