PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7391Gear,crown

Lucent Technologies Inc Corporate Headquarters · NSN 5815-00-448-3781 · FSC 5815 · No Item Name Available
Verified by PartsTable
NSN 5815-00-448-3781 — this item is cataloged by the U.S. Government under National Stock Number 5815-00-448-3781. Primary manufacturer part number: 7391.
Features
  • Gear,crown — FSC 5815
  • 4 verified cross-references
  • Primary manufacturer: Lucent Technologies Inc Corporate Headquarters
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,crown, cataloged under National Stock Number 5815-00-448-3781, is classified within Federal Supply Class 5815 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Lucent Technologies Inc Corporate Headquarters. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear,crown
FSC / FSG5815 — No Item Name Available (FSG 58)
ManufacturersAt and T Corp (CAGE 70408); American Telephone and Telegraph Co (CAGE 64959); Lucent Technologies Inc Corporate Headquarters (CAGE 3B4M0); Telemechanics Inc (CAGE 57712)
Technical Specifications
ParameterValue
NSN5815-00-448-3781
Primary Part Number7391
Item NameGear,crown
FSC / FSG5815 / 58 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5960-00-078-1536 INTERCHANGEABLE
Electron Tube
3830-00-510-71320172071 INTERCHANGEABLE
Seal,oil
New Holland Construction
5960-00-848-8964 INTERCHANGEABLE
Electron Tube
5998-01-036-81507391-00 INTERCHANGEABLE
Electronic Components Assembly
Charles Industries, Llc Div Telecom
7025-01-125-9486 INTERCHANGEABLE
Printer,automatic Data Processin
6645-01-528-16357391 INTERCHANGEABLE
Recorder,time
Kendro Laboratory Products Lp a Unit of Spx
Cross-Reference Index
Part NumberManufacturer
7391 At and T Corp (USA)
7391 American Telephone and Telegraph Co (USA)
7391 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
7391 PRIMARY Telemechanics Inc (USA)
Related Parts
5960-00-078-1536INTERCHANGEABLE
ELECTRON TUBE
3830-00-510-7132INTERCHANGEABLE
SEAL,OIL
0172071
5960-00-848-8964INTERCHANGEABLE
ELECTRON TUBE
5998-01-036-8150INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
7391-00
7025-01-125-9486INTERCHANGEABLE
PRINTER,AUTOMATIC DATA PROCESSIN
6645-01-528-1635INTERCHANGEABLE
RECORDER,TIME
7391

Frequently Asked Questions

What is NSN 5815-00-448-3781?

NSN 5815-00-448-3781 is a Gear,crown, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5815 (No Item Name Available). Status: active.

What are the part numbers for NSN 5815-00-448-3781?

NSN 5815-00-448-3781 has 4 cross-referenced part numbers: 7391 (At and T Corp), 7391 (American Telephone and Telegraph Co), 7391 (Lucent Technologies Inc Corporate Headquarters), 7391 (Telemechanics Inc).

What NSN replaces 5815-00-448-3781?

There are 6 known substitutes for 5815-00-448-3781: 5960-00-078-1536, 3830-00-510-7132, 5960-00-848-8964 and 3 more. Verify interchangeability with system specifications before substitution.

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