PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20774Lamp,incandescent

Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. · NSN 6240-00-643-0687 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-643-0687 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-643-0687. Primary manufacturer part number: 20774.
Features
  • Lamp,incandescent — FSC 6240
  • Base Style: TWO CONTRACT LUGS (NOT CONTACT)
  • Bulb Designator: PAR-46
  • Specification/standard Data: 08108-4578 MANUFACTURERS STANDARD
  • Light Output Rating: 1600.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Wattage Rating: 60.000 WATTS
  • Emitted Light Characteristic: COLORLESS
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-643-0687, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 32 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
NSN6240-00-643-0687
Primary Part Number20774
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
StatusCANCELLED
Base StyleTWO CONTRACT LUGS (NOT CONTACT)
Bulb DesignatorPAR-46
Specification/standard Data08108-4578 MANUFACTURERS STANDARD
Light Output Rating1600.000 BEAM CANDLEPOWER NOMINAL SINGLE RATING
Bulb Light Transmission CharacteristicTRANSPARENT
Wattage Rating60.000 WATTS
Emitted Light CharacteristicCOLORLESS
Current Rating for Which Designed2.143 AMPERES NOMINAL
Average Life Rating in Hours800.0
Nondefinitive Spec/std DataI TYPE
Light Beam TypeFLOOD
Voltage Rating28.000 VOLTS NOMINAL
Filament Heavy Duty Service RatingNOT RATED
Rated Average LifeHOURS
Light Intensity Distribution FeaturePARABOLIC REFLECTOR
Filament Designation2C-6
Bulb StylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2590-00-138-2267453090 INTERCHANGEABLE
Plate,horn Button
Trw Inc Trw Commercial Steering Div
5935-00-149-3230 INTERCHANGEABLE
Connector,receptacle,electrical
3110-00-155-61881-73309 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5360-00-205-4604 INTERCHANGEABLE
Spring,helical,extension
6250-00-208-6822 INTERCHANGEABLE
Lampholder
4720-00-254-5928 INTERCHANGEABLE
Hose Assembly,nonmetallic
5950-00-348-37968532033 INTERCHANGEABLE
Transformer,power Autotransforme
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5915-00-437-407694970-1 INTERCHANGEABLE
Filter Assembly,electrical
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
4810-00-459-677120774 INTERCHANGEABLE
Valve,solenoid
Clayton Manufacturing Company
4820-00-482-4628 INTERCHANGEABLE
Seat,valve
Cross-Reference Index
Part NumberManufacturer
70182763 Minnpar, Llc Dba Minnpar (USA)
167707H1 Dressta North America Ltd (USA)
273560 Dressta North America Ltd (USA)
484517 American Standard Inc Westinghouse Air Brake Co Div (USA)
3588 Hobbs Corp (USA)
949701 Terex Equipment Ltd Div Construction Equipment (GBR)
4578 Phoenix Products Llc Dba Phoenix Lighting Products Llc (USA)
E8914-8 General Motors Corp Fisher Guide Div (USA)
453090 General Motors Corp (USA)
20774 PRIMARY Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
PAR4601M Cecom Lr Center (USA)
167707H1 Komatsu American Intl Co (USA)
A-A-52310 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
167707H1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
176852H1 Komatsu American Intl Co (USA)
E8914-8 General Motors Llc Dba General Motors Llc (USA)
1M5898 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
17318108 Bcp Construction Products Div of Terex Corp (USA)
WL50 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5049701 General Motors Llc Dba General Motors Llc (USA)
Related Parts
2590-00-138-2267INTERCHANGEABLE
PLATE,HORN BUTTON
453090
5935-00-149-3230INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3110-00-155-6188INTERCHANGEABLE
BEARING,BALL,ANNULAR
1-73309
5360-00-205-4604INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
6250-00-208-6822INTERCHANGEABLE
LAMPHOLDER
4720-00-254-5928INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5950-00-348-3796INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
8532033
5915-00-437-4076INTERCHANGEABLE
FILTER ASSEMBLY,ELECTRICAL
94970-1
4810-00-459-6771INTERCHANGEABLE
VALVE,SOLENOID
20774
4820-00-482-4628INTERCHANGEABLE
SEAT,VALVE
5950-00-581-8355INTERCHANGEABLE
TRANSFORMER,POWER
2530-00-600-5586INTERCHANGEABLE
DIAPHRAGM,CHAMBER,BRAKE
231491N

Frequently Asked Questions

What is NSN 6240-00-643-0687?

NSN 6240-00-643-0687 is a Lamp,incandescent, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-643-0687?

NSN 6240-00-643-0687 has 50 cross-referenced part numbers: 70182763 (Minnpar, Llc Dba Minnpar), 167707H1 (Dressta North America Ltd), 273560 (Dressta North America Ltd), 484517 (American Standard Inc Westinghouse Air Brake Co Div), 3588 (Hobbs Corp) and 45 more.

What NSN replaces 6240-00-643-0687?

There are 12 known substitutes for 6240-00-643-0687: 2590-00-138-2267, 5935-00-149-3230, 3110-00-155-6188 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20774?

Key specifications for 20774: Base Style: TWO CONTRACT LUGS (NOT CONTACT); Bulb Designator: PAR-46; End Item Identification: HELICOPTER, MH-53E; AIRCRAFT, PROWLER EA-6B; LANDING CRAFT AIR CUSHION (LCAC); HELICOPTER, CARRIER BASED ASW, SH-60F; AIRCRAFT, C-2A (REPROCURED); HELICOPTER, SEARCH AND RESCUE, HH-60H; TRUCK, FIRE/CRASH P8; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE); HELICOPTER, ADVANCE ATTACK, AH-1W; TRUCK, FIRE/CRASH P2;2320-01-442-1940, TRUCK, CBT, (COMMAND BRIDGE TRANSPORTER) A; Specification/standard Data: 08108-4578 MANUFACTURERS STANDARD. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-643-0687 still in active supply?

NSN 6240-00-643-0687 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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