PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-171471Gearshaft,multiple Gears

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3040-00-521-1401 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-521-1401 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-521-1401. Primary manufacturer part number: SM-B-171471.
Features
  • Gearshaft,multiple Gears — FSC 3040
  • Gear Type: WORM WHEEL ALL GEARS
  • Gear Quantity: 2
  • Material: STEEL ALL GEARS
  • 4 verified cross-references
  • Primary manufacturer: Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Applications
  • Applications requiring Steel All Gears construction
General Description

The Gearshaft,multiple Gears, cataloged under National Stock Number 3040-00-521-1401, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN3040-00-521-1401
Primary Part NumberSM-B-171471
Item NameGearshaft,multiple Gears
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Gear TypeWORM WHEEL ALL GEARS
Gear Quantity2
MaterialSTEEL ALL GEARS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5331-00-166-1063 INTERCHANGEABLE
O-Ring
4720-01-175-7058 INTERCHANGEABLE
Hose,nonmetallic
6615-01-417-21825655-5 INTERCHANGEABLE
Gyroscope,rate
Emcore Corporation Div Concord Division
7021-01-450-8119 INTERCHANGEABLE
Computer,digital
Cross-Reference Index
Part NumberManufacturer
56555A Kleinschmidt Inc (USA)
SC-B-70399 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
SM-B-171471 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
56555 Kleinschmidt Inc (USA)
Related Parts
5331-00-166-1063INTERCHANGEABLE
O-RING
4720-01-175-7058INTERCHANGEABLE
HOSE,NONMETALLIC
6615-01-417-2182INTERCHANGEABLE
GYROSCOPE,RATE
5655-5
7021-01-450-8119INTERCHANGEABLE
COMPUTER,DIGITAL

Frequently Asked Questions

What is NSN 3040-00-521-1401?

NSN 3040-00-521-1401 is a Gearshaft,multiple Gears, 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 3040-00-521-1401?

NSN 3040-00-521-1401 has 4 cross-referenced part numbers: 56555A (Kleinschmidt Inc), SC-B-70399 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), SM-B-171471 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 56555 (Kleinschmidt Inc).

What NSN replaces 3040-00-521-1401?

There are 4 known substitutes for 3040-00-521-1401: 5331-00-166-1063, 4720-01-175-7058, 6615-01-417-2182 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-171471?

Key specifications for SM-B-171471: Gear Type: WORM WHEEL ALL GEARS; Gear Quantity: 2; End Item Identification: 5815-00-521-14015815-00-521-1401; Material: STEEL ALL GEARS. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3040-00-521-1401 still in active supply?

NSN 3040-00-521-1401 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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