PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203401Wrench,open End

Stromberg-Carlson Corp a Plessey Telecommunications Co · NSN 5120-00-540-5314 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-540-5314 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-540-5314. Primary manufacturer part number: 203401.
Features
  • Wrench,open End — FSC 5120
  • Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 0.260 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Style Designator: SINGLE HEAD SINGLE OFFSET
  • Head Thickness: 0.078 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Stromberg-Carlson Corp a Plessey Telecommunications Co
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-540-5314, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-540-5314
Primary Part Number203401
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStromberg-Carlson Corp a Plessey Telecommunications Co
StatusACTIVE
Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size0.260 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Style DesignatorSINGLE HEAD SINGLE OFFSET
Head Thickness0.078 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-278-0417NAS1924-82 INTERCHANGEABLE
Clamp,hose
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
203401 PRIMARY Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
Related Parts
4730-00-278-0417INTERCHANGEABLE
CLAMP,HOSE
NAS1924-82

Frequently Asked Questions

What is NSN 5120-00-540-5314?

NSN 5120-00-540-5314 is a Wrench,open End, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-540-5314?

NSN 5120-00-540-5314 has 1 cross-referenced part number: 203401 (Stromberg-Carlson Corp a Plessey Telecommunications Co).

What NSN replaces 5120-00-540-5314?

There is 1 known substitute for 5120-00-540-5314: 4730-00-278-0417. Verify interchangeability with system specifications before substitution.

What are the specifications of 203401?

Key specifications for 203401: Overall Length: 3.000 INCHES NOMINAL IN; Head Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Size: 0.260 INCHES NOMINAL SINGLE END IN; Wrenching Surface Shape: OVAL SINGLE END INTERNAL. 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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