PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20201 PIECE 7Stem,fluid Valve

Anderson Greenwood Lp Dba Anderson Greenwood Crosby · NSN 4820-01-135-8407 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-135-8407 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-135-8407. Primary manufacturer part number: 20201 PIECE 7.
Features
  • Stem,fluid Valve — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-135-8407, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-135-8407
Primary Part Number20201 PIECE 7
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAnderson Greenwood Lp Dba Anderson Greenwood Crosby
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-075-5091A6792-026-156 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
20201 PIECE 7 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
A6792.026.156 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-01-075-5091INTERCHANGEABLE
STEM,FLUID VALVE
A6792-026-156

Frequently Asked Questions

What is NSN 4820-01-135-8407?

NSN 4820-01-135-8407 is a Stem,fluid Valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-135-8407?

NSN 4820-01-135-8407 has 2 cross-referenced part numbers: 20201 PIECE 7 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A6792.026.156 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).

What NSN replaces 4820-01-135-8407?

There is 1 known substitute for 4820-01-135-8407: 4820-01-075-5091. Verify interchangeability with system specifications before substitution.

What are the specifications of 20201 PIECE 7?

Key specifications for 20201 PIECE 7: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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