PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203740Cover,access

Corbitt Co Inc · NSN 5340-00-350-6504 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-350-6504 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-350-6504. Primary manufacturer part number: 203740.
Features
  • Cover,access — FSC 5340
  • Inside Corner Radius: 0.060 INCHES NOMINAL IN
  • Material: IRON CAST
  • Body Thickness: 0.188 INCHES NOMINAL IN
  • Distance Between Holes Along Length: 2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN
  • Length: 4.125 INCHES NOMINAL IN
  • Width: 3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: CIRCULAR RECESS
Applications
  • Applications requiring Iron Cast construction
General Description

The Cover,access, cataloged under National Stock Number 5340-00-350-6504, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Corbitt Co Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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
NSN5340-00-350-6504
Primary Part Number203740
Item NameCover,access
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerCorbitt Co Inc
StatusACTIVE
Inside Corner Radius0.060 INCHES NOMINAL IN
MaterialIRON CAST
Body Thickness0.188 INCHES NOMINAL IN
Distance Between Holes Along Length2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN
Length4.125 INCHES NOMINAL IN
Width3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
Cross-Sectional Shape StyleCIRCULAR RECESS
Peripheral Shape StyleFOUR RADII SIDES, FOUR HOLES
Distance From First Hole Centerline to End Along Width0.558 INCHES NOMINAL IN
Hole Diameter0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
Mounting Opening Shape StyleUNTHREADED HOLE
First Recess Inside Height0.156 INCHES NOMINAL IN
Distance From First Hole Centerline to End Along Length0.558 INCHES NOMINAL IN
Flange Thickness0.330 INCHES NOMINAL IN
Inside Diameter3.152 INCHES NOMINAL IN
EAR Radius0.344 INCHES NOMINAL IN
Distance Between Holes Along Width2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN
Securing Device TypeTHREADED FASTENER
Body Radius3.807 INCHES MINIMUM AND 3.812 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5998-00-520-2577 INTERCHANGEABLE
Circuit Card Assembly
3110-00-554-52386206ZMAX INTERCHANGEABLE
Bearing,ball,annular
Naval Ship Systems Command
4720-01-053-9728 INTERCHANGEABLE
Hose,air Duct
4820-01-680-3772DR4002G033 INTERCHANGEABLE
Body and Slide,directional Contr
Atlas North America Llc
Cross-Reference Index
Part NumberManufacturer
203740 Corbitt Co Inc (USA)
203740 Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA)
397811 White Motor Corp (USA)
203740 Walter Motor Truck Co (USA)
203740 Kaitlin Corp (USA)
BB29256 Diamond Reo Truck Co (USA)
203740 Pacific Car and Foundry Co Structural Steel Div (USA)
Related Parts
5998-00-520-2577INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3110-00-554-5238INTERCHANGEABLE
BEARING,BALL,ANNULAR
6206ZMAX
4720-01-053-9728INTERCHANGEABLE
HOSE,AIR DUCT
4820-01-680-3772INTERCHANGEABLE
BODY AND SLIDE,DIRECTIONAL CONTR
DR4002G033

Frequently Asked Questions

What is NSN 5340-00-350-6504?

NSN 5340-00-350-6504 is a Cover,access, manufactured by Corbitt Co Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-350-6504?

NSN 5340-00-350-6504 has 7 cross-referenced part numbers: 203740 (Corbitt Co Inc), 203740 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), 397811 (White Motor Corp), 203740 (Walter Motor Truck Co), 203740 (Kaitlin Corp) and 2 more.

What NSN replaces 5340-00-350-6504?

There are 4 known substitutes for 5340-00-350-6504: 5998-00-520-2577, 3110-00-554-5238, 4720-01-053-9728 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 203740?

Key specifications for 203740: Inside Corner Radius: 0.060 INCHES NOMINAL IN; Material: IRON CAST; Body Thickness: 0.188 INCHES NOMINAL IN; Distance Between Holes Along Length: 2.691 INCHES MINIMUM AND 2.696 INCHES MAXIMUM IN. 19 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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