PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6839Lamp,incandescent

Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems · NSN 6240-01-497-1734 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-497-1734 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-497-1734. Primary manufacturer part number: 6839.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Designator: T-1
  • Average Life Rating in Hours: 16000.0
  • Voltage Rating: 28.000 VOLTS NOMINAL
  • Base Style: SUB-MIDGET FLANGED
  • Rated Average Life: HOURS
  • 2 verified cross-references
  • Primary manufacturer: Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-497-1734, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-497-1734
Primary Part Number6839
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerStaco Systems, Inc. Dba Staco Systems Div Dba Staco Systems
StatusACTIVE
Bulb DesignatorT-1
Average Life Rating in Hours16000.0
Voltage Rating28.000 VOLTS NOMINAL
Base StyleSUB-MIDGET FLANGED
Rated Average LifeHOURS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2510-00-100-269922012180 INTERCHANGEABLE
Shock Absorber,direct Action
General Motors Llc Dba General Motors Llc
6240-00-143-6558 INTERCHANGEABLE
Lamp,incandescent
5365-00-446-6535 INTERCHANGEABLE
Shim
3030-00-528-4635 INTERCHANGEABLE
Belt,v
6150-00-644-00276839 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
5950-00-794-1461 INTERCHANGEABLE
Transformer,power
4820-01-415-1795M46-1-MH AND MPL2274 INTERCHANGEABLE
Cartridge,needle Valve
Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
6685-01-530-62004088023 INTERCHANGEABLE
Transmitter,temperature,electric
Rosemount Aerospace Inc Dba Rosemount Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
6839 PRIMARY Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems (USA)
T1 28V .024AMP P/(B Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems (USA)
Related Parts
2510-00-100-2699INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
22012180
6240-00-143-6558INTERCHANGEABLE
LAMP,INCANDESCENT
5365-00-446-6535INTERCHANGEABLE
SHIM
3030-00-528-4635INTERCHANGEABLE
BELT,V
6150-00-644-0027INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
6839
5950-00-794-1461INTERCHANGEABLE
TRANSFORMER,POWER
4820-01-415-1795INTERCHANGEABLE
CARTRIDGE,NEEDLE VALVE
M46-1-MH AND MPL2274
6685-01-530-6200INTERCHANGEABLE
TRANSMITTER,TEMPERATURE,ELECTRIC
4088023

Frequently Asked Questions

What is NSN 6240-01-497-1734?

NSN 6240-01-497-1734 is a Lamp,incandescent, manufactured by Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-497-1734?

NSN 6240-01-497-1734 has 2 cross-referenced part numbers: 6839 (Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems), T1 28V .024AMP P/(B (Staco Systems, Inc. Dba Staco Systems Div Dba Staco Systems).

What NSN replaces 6240-01-497-1734?

There are 8 known substitutes for 6240-01-497-1734: 2510-00-100-2699, 6240-00-143-6558, 5365-00-446-6535 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6839?

Key specifications for 6839: Bulb Designator: T-1; Average Life Rating in Hours: 16000.0; Voltage Rating: 28.000 VOLTS NOMINAL; Base Style: SUB-MIDGET FLANGED. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com