PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-187079Shaft,shouldered

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3040-00-340-3723 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-340-3723 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-340-3723. Primary manufacturer part number: SM-B-187079.
Features
  • Shaft,shouldered — FSC 3040
  • Largest Step Diameter: 0.250 INCHES NOMINAL IN
  • Second End Diameter: 0.1380 INCHES NOMINAL IN
  • First End Style: PLAIN
  • Second End External Thread Length: 0.197 INCHES NOMINAL IN
  • End Similarity: NOT IDENTICAL
  • Material: STEEL CORROSION RESISTING
  • Second End Style: EXTERNAL THREADED
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-00-340-3723, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 10 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3040-00-340-3723
Primary Part NumberSM-B-187079
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Largest Step Diameter0.250 INCHES NOMINAL IN
Second End Diameter0.1380 INCHES NOMINAL IN
First End StylePLAIN
Second End External Thread Length0.197 INCHES NOMINAL IN
End SimilarityNOT IDENTICAL
MaterialSTEEL CORROSION RESISTING
Second End StyleEXTERNAL THREADED
Step Quantity3
FSC Application DataTELETYPE AND FACSIMILE EQUIPMENT
First End Diameter0.2490 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5895-00-308-456255172REVC INTERCHANGEABLE
Receiver Group
L3harris Technologies, Inc Div Space & Airborne Systems
5310-00-483-631655172 INTERCHANGEABLE
Nut Assy-Packing---
Hamilton Sundstrand Corporation Dba Collins Aerospace
6625-00-643-3780 INTERCHANGEABLE
Ammeter,recording
3455-00-654-2313 INTERCHANGEABLE
Cutter,milling,end
Cross-Reference Index
Part NumberManufacturer
55172 Kleinschmidt Inc (USA)
SM-B-187079 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5895-00-308-4562INTERCHANGEABLE
RECEIVER GROUP
55172REVC
5310-00-483-6316INTERCHANGEABLE
NUT ASSY-PACKING---
55172
6625-00-643-3780INTERCHANGEABLE
AMMETER,RECORDING
3455-00-654-2313INTERCHANGEABLE
CUTTER,MILLING,END

Frequently Asked Questions

What is NSN 3040-00-340-3723?

NSN 3040-00-340-3723 is a Shaft,shouldered, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3040 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3040-00-340-3723?

NSN 3040-00-340-3723 has 2 cross-referenced part numbers: 55172 (Kleinschmidt Inc), SM-B-187079 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 3040-00-340-3723?

There are 4 known substitutes for 3040-00-340-3723: 5895-00-308-4562, 5310-00-483-6316, 6625-00-643-3780 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-187079?

Key specifications for SM-B-187079: Largest Step Diameter: 0.250 INCHES NOMINAL IN; Second End Diameter: 0.1380 INCHES NOMINAL IN; First End Style: PLAIN; Second End External Thread Length: 0.197 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3040-00-340-3723 still in active supply?

NSN 3040-00-340-3723 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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