PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-3983 FIND 2 2INCover,access

National Oilwell · NSN 5340-01-087-4532 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-087-4532 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-087-4532. Primary manufacturer part number: NS-3983 FIND 2 2IN.
Features
  • Cover,access — FSC 5340
  • Pilot Diameter: 3.239 INCHES NOMINAL IN
  • Flange Thickness: 1.281 INCHES NOMINAL IN
  • Bolt Hole Centerline to Nearest Edge Distance: 1.875 INCHES NOMINAL IN
  • Hole Diameter: 0.156 INCHES NOMINAL IN
  • Material: COPPER AND NICKEL
  • Outside Diameter: 4.062 INCHES NOMINAL IN
  • Features Provided: SEALING CAPABILITY
Applications
  • Applications requiring Copper and Nickel construction
General Description

The Cover,access, cataloged under National Stock Number 5340-01-087-4532, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Oilwell. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-087-4532
Primary Part NumberNS-3983 FIND 2 2IN
Item NameCover,access
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNational Oilwell
StatusACTIVE
Pilot Diameter3.239 INCHES NOMINAL IN
Flange Thickness1.281 INCHES NOMINAL IN
Bolt Hole Centerline to Nearest Edge Distance1.875 INCHES NOMINAL IN
Hole Diameter0.156 INCHES NOMINAL IN
MaterialCOPPER AND NICKEL
Outside Diameter4.062 INCHES NOMINAL IN
Features ProvidedSEALING CAPABILITY
Mounting Opening Shape StyleUNTHREADED HOLE
Peripheral Shape StyleROUND, ONE HOLE
Pilot Height0.844 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5915-00-138-7607300214 INTERCHANGEABLE
Filter,radio Frequency Interfere
Telemechanics Inc
7350-01-228-8748 INTERCHANGEABLE
Lid,plate
5961-01-290-9472300214 INTERCHANGEABLE
Semiconductor Device,diode
Stored Energy Systems, a Limited Liability Company Dba Stored Energy Systems a Llc
Cross-Reference Index
Part NumberManufacturer
NS-3983 FIND 2 2IN Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
300214 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 FIND 2 2IN PRIMARY National Oilwell (USA)
Related Parts
5915-00-138-7607INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
300214
7350-01-228-8748INTERCHANGEABLE
LID,PLATE
5961-01-290-9472INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
300214

Frequently Asked Questions

What is NSN 5340-01-087-4532?

NSN 5340-01-087-4532 is a Cover,access, manufactured by National Oilwell, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-087-4532?

NSN 5340-01-087-4532 has 3 cross-referenced part numbers: NS-3983 FIND 2 2IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 300214 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-3983 FIND 2 2IN (National Oilwell).

What NSN replaces 5340-01-087-4532?

There are 3 known substitutes for 5340-01-087-4532: 5915-00-138-7607, 7350-01-228-8748, 5961-01-290-9472. Verify interchangeability with system specifications before substitution.

What are the specifications of NS-3983 FIND 2 2IN?

Key specifications for NS-3983 FIND 2 2IN: Pilot Diameter: 3.239 INCHES NOMINAL IN; Flange Thickness: 1.281 INCHES NOMINAL IN; Bolt Hole Centerline to Nearest Edge Distance: 1.875 INCHES NOMINAL IN; Hole Diameter: 0.156 INCHES NOMINAL IN. 10 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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