PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1 1-4CPlug,expansion

Dorman Products, Inc. Dba Dorman · NSN 5340-00-276-5834 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-276-5834 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-276-5834. Primary manufacturer part number: 1 1-4C.
Features
  • Plug,expansion — FSC 5340
  • Style Designator: CUP
  • Height: 0.375 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM
  • Outside Diameter: 1.250 INCHES NOMINAL IN
  • Material: STEEL
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Plug,expansion, cataloged under National Stock Number 5340-00-276-5834, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dorman Products, Inc. Dba Dorman. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-276-5834
Primary Part Number1 1-4C
Item NamePlug,expansion
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerDorman Products, Inc. Dba Dorman
StatusACTIVE
Style DesignatorCUP
Height0.375 INCHES NOMINAL IN
Surface TreatmentCADMIUM
Outside Diameter1.250 INCHES NOMINAL IN
MaterialSTEEL
Material Thickness0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5330-00-599-95463871 .250 INTERCHANGEABLE
Packing Material
Defense Maritime Solutions, Inc.
Cross-Reference Index
Part NumberManufacturer
1 1-4C Dorman Products, Inc. Dba Dorman (USA)
X2289 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
Related Parts
5330-00-599-9546INTERCHANGEABLE
PACKING MATERIAL
3871 .250

Frequently Asked Questions

What is NSN 5340-00-276-5834?

NSN 5340-00-276-5834 is a Plug,expansion, manufactured by Dorman Products, Inc. Dba Dorman, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-276-5834?

NSN 5340-00-276-5834 has 2 cross-referenced part numbers: 1 1-4C (Dorman Products, Inc. Dba Dorman), X2289 (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc).

What NSN replaces 5340-00-276-5834?

There is 1 known substitute for 5340-00-276-5834: 5330-00-599-9546. Verify interchangeability with system specifications before substitution.

What are the specifications of 1 1-4C?

Key specifications for 1 1-4C: Style Designator: CUP; Height: 0.375 INCHES NOMINAL IN; Surface Treatment: CADMIUM; Outside Diameter: 1.250 INCHES NOMINAL 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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