PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1891Lamp,incandescent

Gte Products Corp Sylvania Miniature Lighting Div · NSN 6240-00-770-3372 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-770-3372 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-770-3372. Primary manufacturer part number: 1891.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Bulb Style: T (TUBULAR)
  • Light Output Rating: 2.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
  • Light Center Length: 0.630 INCHES NOMINAL IN
  • Bulb Designator: T-3 1/4
  • Filament Heavy Duty Service Rating: NOT RATED
  • Voltage Rating: 14.000 VOLTS NOMINAL
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-770-3372, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Gte Products Corp Sylvania Miniature Lighting Div. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 38 commercial cross-references from 35 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
NSN6240-00-770-3372
Primary Part Number1891
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGte Products Corp Sylvania Miniature Lighting Div
StatusCANCELLED
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb StyleT (TUBULAR)
Light Output Rating2.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Light Center Length0.630 INCHES NOMINAL IN
Bulb DesignatorT-3 1/4
Filament Heavy Duty Service RatingNOT RATED
Voltage Rating14.000 VOLTS NOMINAL
Base StyleMINIATURE BAYONET
Current Rating for Which Designed0.240 AMPERES NOMINAL
Specification/standard Data08108-1891 MANUFACTURERS STANDARD
Average Life Rating in Hours500.0
Emitted Light CharacteristicCOLORLESS
Wattage Rating3.360 WATTS
Filament Designation2-CF
Rated Average LifeHOURS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-001-4183 INTERCHANGEABLE
Control,positioner
2530-00-014-6848870-616 INTERCHANGEABLE
Cylinder,hydraulic Brake,wheel
The Raymond Corp Dba Raymond Sales Corp Div the Raymond Corporation
6920-00-076-0463 INTERCHANGEABLE
Spring Assembly
8040-00-092-281604001 INTERCHANGEABLE
Adhesive
Royal Holdings, Inc.
4470-00-131-6610 INTERCHANGEABLE
Washer,tab
5935-00-201-23381891 INTERCHANGEABLE
Jack,tip
Entron Industries Limited Partnership Dba Entron Industries Property Div
4210-00-262-92781FC251 INTERCHANGEABLE
Hub,elevation Gear
Oshkosh Defense Llc
5999-00-264-7968591B1-1 INTERCHANGEABLE
Cap,electrical
Cardwell Condenser Corp Lapointe-Admiral Div
4310-00-267-02986633 INTERCHANGEABLE
Filter Element,intake Air Cleane
Tescom Corp Dba Tescom Div Tescom
5330-00-285-1332 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
1891 Uusi, Llc Dba Nartron (USA)
1891 PRIMARY Gte Products Corp Sylvania Miniature Lighting Div (USA)
6633 Honeywell International Inc. Dba Honeyweel Sensing & Controls (USA)
65S533821 Motorola Communications Group Parts Dept Div of Motorola Inc (USA)
87-0747 Finnigan Corporation (USA)
555051-026 Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
M204-20 Psi-Peripheral Support (USA)
775735 Clark Equipment Co (USA)
5041-1270 Industrial Devices Inc (USA)
PL1891 Precision Lamp Inc (USA)
1891 PRIMARY Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
87-0747 Bae Systems Information & Electronic Systems Integration Inc. (USA)
1891 Shelly Associates Inc. (USA)
7936820-049 General Motors Llc Dba General Motors Llc (USA)
MON-M0012 Kendro Laboratory Products Lp a Unit of Spx (USA)
6633 Hobbs Corp (USA)
CM1891 Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
456985 General Motors Corp (USA)
1891 General Electric Company Dba Ge (USA)
1891 Cooper Industries Inc Champion Aviation Products (USA)
Related Parts
6685-00-001-4183INTERCHANGEABLE
CONTROL,POSITIONER
2530-00-014-6848INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,WHEEL
870-616
6920-00-076-0463INTERCHANGEABLE
SPRING ASSEMBLY
8040-00-092-2816INTERCHANGEABLE
ADHESIVE
04001
4470-00-131-6610INTERCHANGEABLE
WASHER,TAB
5935-00-201-2338INTERCHANGEABLE
JACK,TIP
1891
4210-00-262-9278INTERCHANGEABLE
HUB,ELEVATION GEAR
1FC251
5999-00-264-7968INTERCHANGEABLE
CAP,ELECTRICAL
591B1-1
4310-00-267-0298INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
6633
5330-00-285-1332INTERCHANGEABLE
SEAL,PLAIN ENCASED
4820-00-367-4867INTERCHANGEABLE
COCK,DRAIN
189-1
4730-00-439-6021INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
2000-2-6B

Frequently Asked Questions

What is NSN 6240-00-770-3372?

NSN 6240-00-770-3372 is a Lamp,incandescent, manufactured by Gte Products Corp Sylvania Miniature Lighting Div, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-770-3372?

NSN 6240-00-770-3372 has 38 cross-referenced part numbers: 1891 (Uusi, Llc Dba Nartron), 1891 (Gte Products Corp Sylvania Miniature Lighting Div), 6633 (Honeywell International Inc. Dba Honeyweel Sensing & Controls), 65S533821 (Motorola Communications Group Parts Dept Div of Motorola Inc), 87-0747 (Finnigan Corporation) and 33 more.

What NSN replaces 6240-00-770-3372?

There are 12 known substitutes for 6240-00-770-3372: 6685-00-001-4183, 2530-00-014-6848, 6920-00-076-0463 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1891?

Key specifications for 1891: Bulb Light Transmission Characteristic: TRANSPARENT; Bulb Style: T (TUBULAR); Light Output Rating: 2.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING; Light Center Length: 0.630 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-770-3372 still in active supply?

NSN 6240-00-770-3372 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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