PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3773Lamp,fluorescent

Duro-Test Lighting · NSN 6240-01-297-8312 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-297-8312 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-297-8312. Primary manufacturer part number: 3773.
Features
  • Lamp,fluorescent — FSC 6240
  • Wattage Rating: 20.000 WATTS
  • Voltage Rating: 120.000 VOLTS NOMINAL
  • Supplementary Features: POWER-TWIST TYPE; CATHODE TYPE TXC; FOR STARTER TYPE FIXTURES ONLY
  • Rated Average Life: HOURS
  • Average Life Rating in Hours: 18000.0 AND 22000.0
  • Starting Characteristic: PREHEAT
  • Bulb Designator: TH-12
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,fluorescent, cataloged under National Stock Number 6240-01-297-8312, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Duro-Test Lighting. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-297-8312
Primary Part Number3773
Item NameLamp,fluorescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerDuro-Test Lighting
StatusACTIVE
Wattage Rating20.000 WATTS
Voltage Rating120.000 VOLTS NOMINAL
Supplementary FeaturesPOWER-TWIST TYPE; CATHODE TYPE TXC; FOR STARTER TYPE FIXTURES ONLY
Rated Average LifeHOURS
Average Life Rating in Hours18000.0 AND 22000.0
Starting CharacteristicPREHEAT
Bulb DesignatorTH-12
Base StyleMEDIUM BIPIN (FLUORESCENT)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-154-4163 INTERCHANGEABLE
Seal,plain Encased
6930-00-480-31563773 INTERCHANGEABLE
Gear-Spur
Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division
5975-00-503-4410 INTERCHANGEABLE
Cover,conduit Outlet
5330-00-993-3792 INTERCHANGEABLE
Packing,preformed
5999-01-050-56053773 INTERCHANGEABLE
Symbolization
Data Device Corp Dba Beta Transformer Technology
6515-01-476-4017 INTERCHANGEABLE
Support,ankle
Cross-Reference Index
Part NumberManufacturer
3773 Duro-Test Corp (USA)
3773 PRIMARY Duro-Test Lighting (USA)
Related Parts
5330-00-154-4163INTERCHANGEABLE
SEAL,PLAIN ENCASED
6930-00-480-3156INTERCHANGEABLE
GEAR-SPUR
3773
5975-00-503-4410INTERCHANGEABLE
COVER,CONDUIT OUTLET
5330-00-993-3792INTERCHANGEABLE
PACKING,PREFORMED
5999-01-050-5605INTERCHANGEABLE
SYMBOLIZATION
3773
6515-01-476-4017INTERCHANGEABLE
SUPPORT,ANKLE

Frequently Asked Questions

What is NSN 6240-01-297-8312?

NSN 6240-01-297-8312 is a Lamp,fluorescent, manufactured by Duro-Test Lighting, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-297-8312?

NSN 6240-01-297-8312 has 2 cross-referenced part numbers: 3773 (Duro-Test Corp), 3773 (Duro-Test Lighting).

What NSN replaces 6240-01-297-8312?

There are 6 known substitutes for 6240-01-297-8312: 5330-00-154-4163, 6930-00-480-3156, 5975-00-503-4410 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3773?

Key specifications for 3773: Special Features: COLOR VITA-LITE,24 EACH PACKAGE; Wattage Rating: 20.000 WATTS; Voltage Rating: 120.000 VOLTS NOMINAL; Supplementary Features: POWER-TWIST TYPE; CATHODE TYPE TXC; FOR STARTER TYPE FIXTURES ONLY. 10 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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