PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58881Lamp,incandescent

Osram Sylvania Inc. · NSN 6240-01-344-9491 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-344-9491 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-344-9491. Primary manufacturer part number: 58881.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Designation: C,C-8
  • Bulb Style: T (TUBULAR)
  • Current Rating for Which Designed: 4.332 AMPERES NOMINAL
  • Emitted Light Characteristic: COLORLESS
  • Bulb Designator: T-3
  • Wattage Rating: 1200.000 WATTS
  • Base Style: RECESSED SINGLE CONTACT
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-344-9491, 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 14 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-344-9491
Primary Part Number58881
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc.
StatusACTIVE
Filament DesignationC,C-8
Bulb StyleT (TUBULAR)
Current Rating for Which Designed4.332 AMPERES NOMINAL
Emitted Light CharacteristicCOLORLESS
Bulb DesignatorT-3
Wattage Rating1200.000 WATTS
Base StyleRECESSED SINGLE CONTACT
Filament Heavy Duty Service RatingNOT RATED
Average Life Rating in Hours2000.0
Voltage Rating277.000 VOLTS NOMINAL
Bulb Light Transmission CharacteristicTRANSPARENT
Rated Average LifeHOURS
Light Output Rating29000.000 LUMENS NOMINAL SINGLE RATING
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-409-834158881-1 INTERCHANGEABLE
Gearshaft,spur
L3harris Technologies, Inc.
5945-00-681-00191857857 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4330-01-121-635012360651 INTERCHANGEABLE
Parts Kit,fluid Pressure Filter
General Motors Llc Dba General Motors Llc
4820-01-247-255658881 INTERCHANGEABLE
Retainer,disk,valve
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
5985-01-423-7846 INTERCHANGEABLE
Probe,waveguide
Cross-Reference Index
Part NumberManufacturer
58881 Osram Sylvania Inc. (USA)
1200T3Q/CL/SS/277V Osram Sylvania Inc. (USA)
Related Parts
3040-00-409-8341INTERCHANGEABLE
GEARSHAFT,SPUR
58881-1
5945-00-681-0019INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1857857
4330-01-121-6350INTERCHANGEABLE
PARTS KIT,FLUID PRESSURE FILTER
12360651
4820-01-247-2556INTERCHANGEABLE
RETAINER,DISK,VALVE
58881
5985-01-423-7846INTERCHANGEABLE
PROBE,WAVEGUIDE

Frequently Asked Questions

What is NSN 6240-01-344-9491?

NSN 6240-01-344-9491 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 6240-01-344-9491?

NSN 6240-01-344-9491 has 2 cross-referenced part numbers: 58881 (Osram Sylvania Inc.), 1200T3Q/CL/SS/277V (Osram Sylvania Inc.).

What NSN replaces 6240-01-344-9491?

There are 5 known substitutes for 6240-01-344-9491: 3040-00-409-8341, 5945-00-681-0019, 4330-01-121-6350 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58881?

Key specifications for 58881: Overall Length: 10.062 INCHES NOMINAL IN; Filament Designation: C,C-8; Bulb Style: T (TUBULAR); Current Rating for Which Designed: 4.332 AMPERES NOMINAL. 16 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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