PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21BLampholder

Morse, F W & Company · NSN 6250-00-174-8956 · FSC 6250 · No Item Name Available
Verified by PartsTable
NSN 6250-00-174-8956 — this item is cataloged by the U.S. Government under National Stock Number 6250-00-174-8956. Primary manufacturer part number: 21B.
Features
  • Lampholder — FSC 6250
  • Lamp Base Type Accommodated: SINGLE CONTACT BAYONET CANDELABRA
  • Style Designator: CANDELABRA
  • Material: STEEL MOUNTING
  • Material: COPPER ALLOY SHELL
  • Material: STEEL MOUNTING
  • Coating Method: PLATED SHELL
  • Outside Diameter: 0.688 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Mounting construction
General Description

The Lampholder, cataloged under National Stock Number 6250-00-174-8956, is classified within Federal Supply Class 6250 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Morse, F W & Company. Government technical data includes 27 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6250-00-174-8956
Primary Part Number21B
Item NameLampholder
FSC / FSG6250 / 62 — No Item Name Available
ManufacturerMorse, F W & Company
StatusCANCELLED
Lamp Base Type AccommodatedSINGLE CONTACT BAYONET CANDELABRA
Style DesignatorCANDELABRA
MaterialSTEEL MOUNTING
MaterialCOPPER ALLOY SHELL
MaterialSTEEL MOUNTING
Coating MethodPLATED SHELL
Outside Diameter0.688 INCHES NOMINAL IN
Voltage in Volts125.0
MaterialCOPPER ALLOY SHELL
Terminal TypeSCREW
Outside Diameter0.688 INCHES NOMINAL IN
Lamp Base Type AccommodatedSINGLE CONTACT BAYONET CANDELABRA
Terminal Quantity2
Wattage Rating in Watts75.0
Mounting MethodUNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Mounting Device Quantity2
Hazardous Locations/environmental ProtectionNOT RATED
Wattage Rating in Watts75.0
MaterialCOPPER ALLOY BODY
Mounting MethodUNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Surface TreatmentNICKEL SHELL
Mounting Device Quantity2
Coating MethodPLATED SHELL
Mounting Feature TypeSURFACE
Style DesignatorCANDELABRA
Voltage in Volts125.0
Surface TreatmentNICKEL SHELL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
4310-00-035-751021B INTERCHANGEABLE
Cylinder Sleeve
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5940-00-159-0245208060-2 INTERCHANGEABLE
Terminal,stud
Raytheon Company
5975-00-242-4234CF8201 INTERCHANGEABLE
Adapter,electrical Conduit
Egs Electrical Group Appleton Div
5960-00-262-71856716653 INTERCHANGEABLE
Retainer,electron Tube
Allison Transmission Inc Dba Allison Transmission, Inc
6320-00-519-07702-1B INTERCHANGEABLE
Transmitter,ship's Distance
The Dewey Electronics Corporation Div Pitometer Log Division
5330-01-152-609021B INTERCHANGEABLE
Flinger
Mth Tool Company Inc. Dba Mth Pumps
4320-01-211-4093 INTERCHANGEABLE
Disk,pump
6520-01-390-2629BB21B INTERCHANGEABLE
Burnisher,dental
Hu-Friedy Mfg. Co., Llc
7920-01-714-696621B INTERCHANGEABLE
Brush,wire,scratch
Gordon Brush Mfg. Co., Inc.
Cross-Reference Index
Part NumberManufacturer
21B PRIMARY Morse, F W & Company (USA)
1223 PRIMARY Morse, F W & Company (USA)
Related Parts
4310-00-035-7510INTERCHANGEABLE
CYLINDER SLEEVE
21B
5940-00-159-0245INTERCHANGEABLE
TERMINAL,STUD
208060-2
5975-00-242-4234INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
CF8201
5960-00-262-7185INTERCHANGEABLE
RETAINER,ELECTRON TUBE
6716653
6320-00-519-0770INTERCHANGEABLE
TRANSMITTER,SHIP'S DISTANCE
2-1B
5330-01-152-6090INTERCHANGEABLE
FLINGER
21B
4320-01-211-4093INTERCHANGEABLE
DISK,PUMP
6520-01-390-2629INTERCHANGEABLE
BURNISHER,DENTAL
BB21B
7920-01-714-6966INTERCHANGEABLE
BRUSH,WIRE,SCRATCH
21B

Frequently Asked Questions

What is NSN 6250-00-174-8956?

NSN 6250-00-174-8956 is a Lampholder, manufactured by Morse, F W & Company, classified under FSC 6250 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6250-00-174-8956?

NSN 6250-00-174-8956 has 2 cross-referenced part numbers: 21B (Morse, F W & Company), 1223 (Morse, F W & Company).

What NSN replaces 6250-00-174-8956?

There are 9 known substitutes for 6250-00-174-8956: 4310-00-035-7510, 5940-00-159-0245, 5975-00-242-4234 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21B?

Key specifications for 21B: Overall Height: 1.047 INCHES NOMINAL IN; Lamp Base Type Accommodated: SINGLE CONTACT BAYONET CANDELABRA; Style Designator: CANDELABRA; Material: STEEL MOUNTING. 29 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6250-00-174-8956 still in active supply?

NSN 6250-00-174-8956 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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