PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20T 3Q/CL/24VLamp,incandescent

Osram Sylvania Inc. · NSN 6240-01-285-3793 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-285-3793 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-285-3793. Primary manufacturer part number: 20T 3Q/CL/24V.
Features
  • Lamp,incandescent — FSC 6240
  • Base Style: G4 NONE
  • Wattage Rating: 20.000 WATTS
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Filament Heavy Duty Service Rating: NOT RATED
  • Voltage Rating: 24.000 VOLTS MINIMUM AND 26.000 VOLTS MAXIMUM
  • Bulb Style: T (TUBULAR)
  • Light Center Length: 0.770 INCHES NOMINAL IN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-285-3793, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Osram Sylvania Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-285-3793
Primary Part Number20T 3Q/CL/24V
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc.
StatusACTIVE
Base StyleG4 NONE
Wattage Rating20.000 WATTS
Bulb Light Transmission CharacteristicTRANSPARENT
Filament Heavy Duty Service RatingNOT RATED
Voltage Rating24.000 VOLTS MINIMUM AND 26.000 VOLTS MAXIMUM
Bulb StyleT (TUBULAR)
Light Center Length0.770 INCHES NOMINAL IN
Emitted Light CharacteristicCOLORLESS
Filling Gas TypeHALOGEN
Average Life Rating in Hours1000.0
Rated Average LifeHOURS
Light Output Rating350.000 LUMENS NOMINAL SINGLE RATING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5970-01-180-373158662 INTERCHANGEABLE
Insulation Sleeving,electrical
Bergstrom Inc
6240-01-344-699660040 INTERCHANGEABLE
Lamp,metal Halide
Hid Systems Inc
Cross-Reference Index
Part NumberManufacturer
20T 3Q/CL/24V Osram Sylvania Inc. (USA)
58662 Osram Sylvania Inc. (USA)
58662 Osram Sylvania Ltd (CAN)
AD170203198 Comptek Research Inc (USA)
OSRAM 64435 G4 20W Sunnex, Llc (USA)
64435 Osram Sales Corp Div of Siemens Corp (USA)
Related Parts
5970-01-180-3731INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
58662
6240-01-344-6996INTERCHANGEABLE
LAMP,METAL HALIDE
60040

Frequently Asked Questions

What is NSN 6240-01-285-3793?

NSN 6240-01-285-3793 is a Lamp,incandescent, manufactured by Osram Sylvania Inc., classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-285-3793?

NSN 6240-01-285-3793 has 6 cross-referenced part numbers: 20T 3Q/CL/24V (Osram Sylvania Inc.), 58662 (Osram Sylvania Inc.), 58662 (Osram Sylvania Ltd), AD170203198 (Comptek Research Inc), OSRAM 64435 G4 20W (Sunnex, Llc) and 1 more.

What NSN replaces 6240-01-285-3793?

There are 2 known substitutes for 6240-01-285-3793: 5970-01-180-3731, 6240-01-344-6996. Verify interchangeability with system specifications before substitution.

What are the specifications of 20T 3Q/CL/24V?

Key specifications for 20T 3Q/CL/24V: Overall Length: 1.180 INCHES MAXIMUM IN; Base Style: G4 NONE; Wattage Rating: 20.000 WATTS; Bulb Light Transmission Characteristic: TRANSPARENT. 13 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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