PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6790-021-127Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-067-5311 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-067-5311 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-067-5311. Primary manufacturer part number: A6790-021-127.
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Model Number for Which Designed: 1751-T
  • Material: NICKEL ALLOY
  • Largest Outside Diameter: 0.500 INCHES NOMINAL IN
  • Valve Type for Which Designed: RELIEF
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
  • Stem Actuating End Type: ROUNDED
  • Valve Size for Which Designed: 0.500 INCHES IN
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 4820-01-067-5311, 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 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-067-5311
Primary Part NumberA6790-021-127
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
Valve Model Number for Which Designed1751-T
MaterialNICKEL ALLOY
Largest Outside Diameter0.500 INCHES NOMINAL IN
Valve Type for Which DesignedRELIEF
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
Stem Actuating End TypeROUNDED
Valve Size for Which Designed0.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-343-7613 INTERCHANGEABLE
Plug,tip
2805-00-356-1346 INTERCHANGEABLE
Screw,adjustment
6520-00-431-415203743 INTERCHANGEABLE
Support,face Bow Bite Fork,denta
Whip-Mix Corp
5305-00-638-4244A85-85 INTERCHANGEABLE
Screw,shoulder
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5905-00-941-98081789810-4 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Honeywell Intl Inc Defense Avionics Systems
4820-01-056-1669A6790.021.127 1-4IN INTERCHANGEABLE
Stem,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-066-9582A6790-014-127 1-4IN INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4730-01-093-34948585-16 INTERCHANGEABLE
Nut,union
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-138-6556 INTERCHANGEABLE
Stem,fluid Valve
5950-01-159-7371 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
MIL-V-20065 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
20257 FIND 11 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
06790021127 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
A6790-021-127 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
20245 PIECE 12 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8585 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6790-021-127 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8585-48 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
5935-00-343-7613INTERCHANGEABLE
PLUG,TIP
2805-00-356-1346INTERCHANGEABLE
SCREW,ADJUSTMENT
6520-00-431-4152INTERCHANGEABLE
SUPPORT,FACE BOW BITE FORK,DENTA
03743
5305-00-638-4244INTERCHANGEABLE
SCREW,SHOULDER
A85-85
5905-00-941-9808INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
1789810-4
4820-01-056-1669INTERCHANGEABLE
STEM,VALVE
A6790.021.127 1-4IN
4820-01-066-9582INTERCHANGEABLE
STEM,FLUID VALVE
A6790-014-127 1-4IN
4730-01-093-3494INTERCHANGEABLE
NUT,UNION
8585-16
4820-01-138-6556INTERCHANGEABLE
STEM,FLUID VALVE
5950-01-159-7371INTERCHANGEABLE
COIL,RADIO FREQUENCY
4820-01-230-5486INTERCHANGEABLE
VALVE,GLOBE
8585 STOP CHECK 4IN
3120-01-327-8904INTERCHANGEABLE
BEARING,SLEEVE
8585

Frequently Asked Questions

What is NSN 4820-01-067-5311?

NSN 4820-01-067-5311 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: cancelled.

What are the part numbers for NSN 4820-01-067-5311?

NSN 4820-01-067-5311 has 8 cross-referenced part numbers: MIL-V-20065 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20257 FIND 11 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 06790021127 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), A6790-021-127 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20245 PIECE 12 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 3 more.

What NSN replaces 4820-01-067-5311?

There are 12 known substitutes for 4820-01-067-5311: 5935-00-343-7613, 2805-00-356-1346, 6520-00-431-4152 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A6790-021-127?

Key specifications for A6790-021-127: Valve Model Number for Which Designed: 1751-T; Material: NICKEL ALLOY; Largest Outside Diameter: 0.500 INCHES NOMINAL IN; Valve Type for Which Designed: RELIEF. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-067-5311 still in active supply?

NSN 4820-01-067-5311 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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