PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6321Lamp,incandescent

Stewart Avionics Inc · NSN 6240-00-295-2390 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-295-2390 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-295-2390. Primary manufacturer part number: A6321.
Features
  • Lamp,incandescent — FSC 6240
  • Filament Heavy Duty Service Rating: NOT RATED
  • Features Provided: FILAMENT SHIELDING AND HEAT RESISTANT GLASS
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Average Life Rating in Hours: 1400.0
  • Emitted Light Characteristic: WHITE
  • Current Rating for Which Designed: 0.063 AMPERES NOMINAL
  • Bulb Style: S (STRAIGHT SIDE)
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-295-2390, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Stewart Avionics Inc. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-295-2390
Primary Part NumberA6321
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerStewart Avionics Inc
StatusCANCELLED
Filament Heavy Duty Service RatingNOT RATED
Features ProvidedFILAMENT SHIELDING AND HEAT RESISTANT GLASS
Bulb Light Transmission CharacteristicTRANSPARENT
Average Life Rating in Hours1400.0
Emitted Light CharacteristicWHITE
Current Rating for Which Designed0.063 AMPERES NOMINAL
Bulb StyleS (STRAIGHT SIDE)
Bulb DesignatorS-11
Voltage Rating120.000 VOLTS NOMINAL
Wattage Rating7.500 WATTS
Rated Average LifeHOURS
Light Output Rating52.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING
Base StyleMEDIUM SCREW
Filament DesignationC-7A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-087-5067 INTERCHANGEABLE
Nutdriver
3110-00-108-9352 INTERCHANGEABLE
Bearing,ball,annular
5910-00-112-7899 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5360-00-246-7348 INTERCHANGEABLE
Spring,helical,compression
2940-00-505-671108E01050000 INTERCHANGEABLE
Filter Element,fluid
General Services Administration Federal Supply Service
5961-00-532-2347S12 INTERCHANGEABLE
Semiconductor Device,diode
Semtech Corporation
6250-00-548-0306S11 INTERCHANGEABLE
Lampholder
H.r. Kirkland Company, Inc.
5935-00-615-2691S11 INTERCHANGEABLE
Jack,telephone
Switchcraft Inc.
5330-01-006-3778A6321 INTERCHANGEABLE
Seal,plain
Armstrong International Inc Dba Armstrong Machine Works
5961-01-159-7433S1-1 INTERCHANGEABLE
Semiconductor Device,diode
Contraves Inc
Cross-Reference Index
Part NumberManufacturer
7 1/2S120V General Electric Company Dba Ge (USA)
S11 General Electric Co Lamp Division of Consumer Products Group (USA)
A6321 PRIMARY Stewart Avionics Inc (USA)
298-12021-17 Rexworks Inc (USA)
S11 General Electric Company (USA)
7 1-2S115T0125V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Related Parts
5120-00-087-5067INTERCHANGEABLE
NUTDRIVER
3110-00-108-9352INTERCHANGEABLE
BEARING,BALL,ANNULAR
5910-00-112-7899INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5360-00-246-7348INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2940-00-505-6711INTERCHANGEABLE
FILTER ELEMENT,FLUID
08E01050000
5961-00-532-2347INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
S12
6250-00-548-0306INTERCHANGEABLE
LAMPHOLDER
S11
5935-00-615-2691INTERCHANGEABLE
JACK,TELEPHONE
S11
5330-01-006-3778INTERCHANGEABLE
SEAL,PLAIN
A6321
5961-01-159-7433INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
S1-1
5985-01-162-2645INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
C11341-1
5996-01-170-1514INTERCHANGEABLE
AMPLIFIER SUBASSEMBLY
MODELS11

Frequently Asked Questions

What is NSN 6240-00-295-2390?

NSN 6240-00-295-2390 is a Lamp,incandescent, manufactured by Stewart Avionics Inc, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-295-2390?

NSN 6240-00-295-2390 has 6 cross-referenced part numbers: 7 1/2S120V (General Electric Company Dba Ge), S11 (General Electric Co Lamp Division of Consumer Products Group), A6321 (Stewart Avionics Inc), 298-12021-17 (Rexworks Inc), S11 (General Electric Company) and 1 more.

What NSN replaces 6240-00-295-2390?

There are 12 known substitutes for 6240-00-295-2390: 5120-00-087-5067, 3110-00-108-9352, 5910-00-112-7899 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A6321?

Key specifications for A6321: Filament Heavy Duty Service Rating: NOT RATED; Features Provided: FILAMENT SHIELDING AND HEAT RESISTANT GLASS; Bulb Light Transmission Characteristic: TRANSPARENT; Average Life Rating in Hours: 1400.0. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-295-2390 still in active supply?

NSN 6240-00-295-2390 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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