PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

312RLamp,incandescent

Lamp Industry for Use with Industry Designations and Abbreviations for Lamps · NSN 6240-00-155-7925 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-155-7925 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-155-7925. Primary manufacturer part number: 312R.
Features
  • Lamp,incandescent — FSC 6240
  • Voltage Rating: 28.000 VOLTS NOMINAL
  • Filament Heavy Duty Service Rating: NOT RATED
  • Wattage Rating: 36.120 WATTS
  • Specification/standard Data: 08108-312R MANUFACTURERS STANDARD
  • Base Style: DOUBLE CONTACT BAYONET CANDELABRA
  • Bulb Light Transmission Characteristic: TRANSLUCENT
  • Filament Designation: C-2V V
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-155-7925, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Lamp Industry for Use with Industry Designations and Abbreviations for Lamps. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-155-7925
Primary Part Number312R
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerLamp Industry for Use with Industry Designations and Abbreviations for Lamps
StatusACTIVE
Voltage Rating28.000 VOLTS NOMINAL
Filament Heavy Duty Service RatingNOT RATED
Wattage Rating36.120 WATTS
Specification/standard Data08108-312R MANUFACTURERS STANDARD
Base StyleDOUBLE CONTACT BAYONET CANDELABRA
Bulb Light Transmission CharacteristicTRANSLUCENT
Filament DesignationC-2V V
Current Rating for Which Designed1.290 AMPERES NOMINAL
Bulb StyleS (STRAIGHT SIDE)
Emitted Light CharacteristicRED
Bulb DesignatorS-11
Average Life Rating in Hours300.0
Rated Average LifeHOURS
Light Center Length1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-156-5246312R INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3444-00-238-16423-1/2-R INTERCHANGEABLE
Press,arbor,hand Operated
Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division
3444-00-243-26523 1/2R INTERCHANGEABLE
Press,arbor,hand Operated
Belco Industries, Inc. Dba Belco Industries Inc Div Famco Machine Division
Cross-Reference Index
Part NumberManufacturer
87-0146 Bae Systems Information & Electronic Systems Integration Inc. (USA)
AN3139R312 Aeronautical Standards Group Dept of Navy and Air Force (USA)
87-0146 Finnigan Corporation (USA)
312R General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
3139R312 Joint Electronics Type Designation System (USA)
312R PRIMARY Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Related Parts
3110-00-156-5246INTERCHANGEABLE
BEARING,BALL,ANNULAR
312R
3444-00-238-1642INTERCHANGEABLE
PRESS,ARBOR,HAND OPERATED
3-1/2-R
3444-00-243-2652INTERCHANGEABLE
PRESS,ARBOR,HAND OPERATED
3 1/2R

Frequently Asked Questions

What is NSN 6240-00-155-7925?

NSN 6240-00-155-7925 is a Lamp,incandescent, manufactured by Lamp Industry for Use with Industry Designations and Abbreviations for Lamps, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-155-7925?

NSN 6240-00-155-7925 has 6 cross-referenced part numbers: 87-0146 (Bae Systems Information & Electronic Systems Integration Inc.), AN3139R312 (Aeronautical Standards Group Dept of Navy and Air Force), 87-0146 (Finnigan Corporation), 312R (General Electric Co Miniature Lamp Products Dept Lighting Business Group), 3139R312 (Joint Electronics Type Designation System) and 1 more.

What NSN replaces 6240-00-155-7925?

There are 3 known substitutes for 6240-00-155-7925: 3110-00-156-5246, 3444-00-238-1642, 3444-00-243-2652. Verify interchangeability with system specifications before substitution.

What are the specifications of 312R?

Key specifications for 312R: Voltage Rating: 28.000 VOLTS NOMINAL; Filament Heavy Duty Service Rating: NOT RATED; Wattage Rating: 36.120 WATTS; Specification/standard Data: 08108-312R MANUFACTURERS STANDARD. 15 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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