PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-4029 ASSEMBLY6A FIND4 1/2INCover Nut,valve

National Oilwell · NSN 4820-01-103-3322 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-103-3322 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-103-3322. Primary manufacturer part number: NS-4029 ASSEMBLY6A FIND4 1/2IN.
Features
  • Cover Nut,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: National Oilwell
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Flow control in piping systems
  • Pressure regulation
General Description

The Cover Nut,valve, cataloged under National Stock Number 4820-01-103-3322, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is National Oilwell. 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.

Catalog Facts
Item NameCover Nut,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersEmerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187); National Oilwell (CAGE 11836)
Technical Specifications
ParameterValue
NSN4820-01-103-3322
Primary Part NumberNS-4029 ASSEMBLY6A FIND4 1/2IN
Item NameCover Nut,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNational Oilwell
StatusACTIVE
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
4820-01-103-3384NS-4029 ASSEMBLY 6B FIND 4 1IN INTERCHANGEABLE
Cap,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
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 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-4029 ASSEMBLY6A FIND4 1/2IN Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-4029 ASSEMBLY6A FIND4 1/2IN PRIMARY National Oilwell (USA)
NS-4029 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
4820-01-103-3384INTERCHANGEABLE
CAP,VALVE
NS-4029 ASSEMBLY 6B FIND 4 1IN
4820-01-103-6103INTERCHANGEABLE
CAP,VALVE
300161

Frequently Asked Questions

What is NSN 4820-01-103-3322?

NSN 4820-01-103-3322 is a Cover Nut,valve, manufactured by National Oilwell, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-103-3322?

NSN 4820-01-103-3322 has 4 cross-referenced part numbers: NS-4029 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-4029 ASSEMBLY6A FIND4 1/2IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-4029 ASSEMBLY6A FIND4 1/2IN (National Oilwell), NS-4029 (National Oilwell).

What NSN replaces 4820-01-103-3322?

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

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