PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121583Bail,extension

American Telephone and Telegraph Co · NSN 5815-00-392-1839 · FSC 5815 · No Item Name Available
Verified by PartsTable
NSN 5815-00-392-1839 — this item is cataloged by the U.S. Government under National Stock Number 5815-00-392-1839. Primary manufacturer part number: 121583.
Features
  • Bail,extension — FSC 5815
  • FSC Application Data: TELETYPE AND FACSIMILE EQUIPMENT
  • 3 verified cross-references
  • Primary manufacturer: American Telephone and Telegraph Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bail,extension, cataloged under National Stock Number 5815-00-392-1839, 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 American Telephone and Telegraph Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5815-00-392-1839
Primary Part Number121583
Item NameBail,extension
FSC / FSG5815 / 58 — No Item Name Available
ManufacturerAmerican Telephone and Telegraph Co
StatusACTIVE
FSC Application DataTELETYPE AND FACSIMILE EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5945-00-252-2814SK5001 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
3020-00-352-6304121583 INTERCHANGEABLE
Gear,bevel
Fwd Seagrave Holdings Lp
5940-01-248-6219121-583 INTERCHANGEABLE
Terminal Board
Tricor Systems Inc
3020-01-377-4019121583 INTERCHANGEABLE
Pulley,groove
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4820-01-427-8464121583 INTERCHANGEABLE
Retainer,disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
121583 American Telephone and Telegraph Co (USA)
121583 At and T Corp (USA)
121583 Lucent Technologies Inc Corporate Headquarters (USA)
Related Parts
5945-00-252-2814INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SK5001
3020-00-352-6304INTERCHANGEABLE
GEAR,BEVEL
121583
5940-01-248-6219INTERCHANGEABLE
TERMINAL BOARD
121-583
3020-01-377-4019INTERCHANGEABLE
PULLEY,GROOVE
121583
4820-01-427-8464INTERCHANGEABLE
RETAINER,DISK,VALVE
121583

Frequently Asked Questions

What is NSN 5815-00-392-1839?

NSN 5815-00-392-1839 is a Bail,extension, manufactured by American Telephone and Telegraph Co, classified under FSC 5815 (No Item Name Available). Status: active.

What are the part numbers for NSN 5815-00-392-1839?

NSN 5815-00-392-1839 has 3 cross-referenced part numbers: 121583 (American Telephone and Telegraph Co), 121583 (At and T Corp), 121583 (Lucent Technologies Inc Corporate Headquarters).

What NSN replaces 5815-00-392-1839?

There are 5 known substitutes for 5815-00-392-1839: 5945-00-252-2814, 3020-00-352-6304, 5940-01-248-6219 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121583?

Key specifications for 121583: FSC Application Data: TELETYPE AND FACSIMILE EQUIPMENT. 1 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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