PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2203Clamp,synchro

American Standard Inc Westinghouse Air Brake Co Div · NSN 5340-00-379-3653 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-379-3653 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-379-3653. Primary manufacturer part number: 2203.
Features
  • Clamp,synchro — FSC 5340
  • Furnished Items: LOCKNUT
  • Length: 1.812 INCHES NOMINAL IN
  • Width: 1.625 INCHES NOMINAL IN
  • Height: 0.781 INCHES NOMINAL IN
  • Material: STEEL
  • Hole Diameter: 0.688 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Clamp,synchro, cataloged under National Stock Number 5340-00-379-3653, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American Standard Inc Westinghouse Air Brake Co Div. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-00-379-3653
Primary Part Number2203
Item NameClamp,synchro
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerAmerican Standard Inc Westinghouse Air Brake Co Div
StatusACTIVE
Furnished ItemsLOCKNUT
Length1.812 INCHES NOMINAL IN
Width1.625 INCHES NOMINAL IN
Height0.781 INCHES NOMINAL IN
MaterialSTEEL
Hole Diameter0.688 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6515-00-982-7493 (NON27381Z)
HAZMATNo
Verified Substitutes 2
6515-00-982-7493NON27381Z SUCCESSOR
Mask,surgical
Medline Industries, Lp
5340-01-415-88542203 SUCCESSOR
Standoff,threaded,spacing
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
2203 American Standard Inc Westinghouse Air Brake Co Div (USA)
2203 Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co (USA)
Related Parts
SUCCESSOR 6515-00-982-7493 Mask,surgical · NON27381Z
5340-01-415-8854SUCCESSOR
STANDOFF,THREADED,SPACING
2203

Frequently Asked Questions

What is NSN 5340-00-379-3653?

NSN 5340-00-379-3653 is a Clamp,synchro, manufactured by American Standard Inc Westinghouse Air Brake Co Div, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-379-3653?

NSN 5340-00-379-3653 has 2 cross-referenced part numbers: 2203 (American Standard Inc Westinghouse Air Brake Co Div), 2203 (Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co).

What NSN replaces 5340-00-379-3653?

There are 2 known substitutes for 5340-00-379-3653: 6515-00-982-7493, 5340-01-415-8854. Verify interchangeability with system specifications before substitution.

What are the specifications of 2203?

Key specifications for 2203: Furnished Items: LOCKNUT; Length: 1.812 INCHES NOMINAL IN; Width: 1.625 INCHES NOMINAL IN; Height: 0.781 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.
PartsTable Design LLC · partstable.com