PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-4029 ASSEMBLY 6B FIND 4 1INCap,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-103-3384 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-103-3384 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-103-3384. Primary manufacturer part number: NS-4029 ASSEMBLY 6B FIND 4 1IN.
Features
  • Cap,valve — FSC 4820
  • Height: 0.312 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Attachment Method: THREADED
  • Valve Size for Which Designed: 1.000 INCHES IN
  • Valve Type for Which Designed: CHECK
  • Outside Diameter: 3.312 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-103-3384, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-103-3384
Primary Part NumberNS-4029 ASSEMBLY 6B FIND 4 1IN
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Height0.312 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Attachment MethodTHREADED
Valve Size for Which Designed1.000 INCHES IN
Valve Type for Which DesignedCHECK
Outside Diameter3.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-01-103-3260842-504060-331 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5340-01-103-3321NS-4029 ASSEMBLY 6B FIND 2 1IN INTERCHANGEABLE
Cover,access
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-103-3322NS-4029 ASSEMBLY6A FIND4 1/2IN INTERCHANGEABLE
Cover Nut,valve
National Oilwell
4820-01-103-6103300161 INTERCHANGEABLE
Cap,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
NS-4029 ASSEMBLY 6B FIND 4 1IN PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-4029 National Oilwell (USA)
NS-4029 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-4029 ASSEMBLY 6B FIND 4 1IN National Oilwell (USA)
Related Parts
4820-01-103-3260INTERCHANGEABLE
VALVE,CHECK
842-504060-331
5340-01-103-3321INTERCHANGEABLE
COVER,ACCESS
NS-4029 ASSEMBLY 6B FIND 2 1IN
4820-01-103-3322INTERCHANGEABLE
COVER NUT,VALVE
NS-4029 ASSEMBLY6A FIND4 1/2IN
4820-01-103-6103INTERCHANGEABLE
CAP,VALVE
300161

Frequently Asked Questions

What is NSN 4820-01-103-3384?

NSN 4820-01-103-3384 is a Cap,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 4820-01-103-3384?

NSN 4820-01-103-3384 has 4 cross-referenced part numbers: NS-4029 ASSEMBLY 6B FIND 4 1IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-4029 (National Oilwell), NS-4029 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-4029 ASSEMBLY 6B FIND 4 1IN (National Oilwell).

What NSN replaces 4820-01-103-3384?

There are 4 known substitutes for 4820-01-103-3384: 4820-01-103-3260, 5340-01-103-3321, 4820-01-103-3322 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NS-4029 ASSEMBLY 6B FIND 4 1IN?

Key specifications for NS-4029 ASSEMBLY 6B FIND 4 1IN: Height: 0.312 INCHES NOMINAL IN; Material: COPPER ALLOY; Attachment Method: THREADED; Valve Size for Which Designed: 1.000 INCHES IN. 6 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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