PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB342387Clamp,synchro

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5340-00-757-2263 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-757-2263 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-757-2263. Primary manufacturer part number: SMB342387.
Features
  • Clamp,synchro — FSC 5340
  • Furnished Items: LOCKNUT
  • Width: 0.375 INCHES NOMINAL IN
  • Nominal Thread Size: 0.138 INCHES IN
  • Thread Series Designator: UNF
  • Material: STEEL COMP 1045
  • Height: 0.108 INCHES NOMINAL IN
  • Length: 0.874 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 1045 construction
General Description

The Clamp,synchro, cataloged under National Stock Number 5340-00-757-2263, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 8 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-757-2263
Primary Part NumberSMB342387
Item NameClamp,synchro
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Furnished ItemsLOCKNUT
Width0.375 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES IN
Thread Series DesignatorUNF
MaterialSTEEL COMP 1045
Height0.108 INCHES NOMINAL IN
Length0.874 INCHES NOMINAL IN
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5950-00-646-2668606783 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation
5995-00-835-087660678 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
5365-00-876-978960-678 INTERCHANGEABLE
Spacer,piston Cup
Triumph Thermal Systems - Maryland, Inc.
Cross-Reference Index
Part NumberManufacturer
60678 Kleinschmidt Inc (USA)
SMB342387 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5950-00-646-2668INTERCHANGEABLE
REACTOR
606783
5995-00-835-0876INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
60678
5365-00-876-9789INTERCHANGEABLE
SPACER,PISTON CUP
60-678

Frequently Asked Questions

What is NSN 5340-00-757-2263?

NSN 5340-00-757-2263 is a Clamp,synchro, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-757-2263?

NSN 5340-00-757-2263 has 2 cross-referenced part numbers: 60678 (Kleinschmidt Inc), SMB342387 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5340-00-757-2263?

There are 3 known substitutes for 5340-00-757-2263: 5950-00-646-2668, 5995-00-835-0876, 5365-00-876-9789. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB342387?

Key specifications for SMB342387: Furnished Items: LOCKNUT; Width: 0.375 INCHES NOMINAL IN; Nominal Thread Size: 0.138 INCHES IN; Thread Series Designator: UNF. 8 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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