PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15539Lamp,metal Halide

Osram Sylvania Inc. · NSN 6240-01-685-7451 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-685-7451 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-685-7451. Primary manufacturer part number: 15539.
Features
  • Lamp,metal Halide — FSC 6240
  • Burning Position: BASE UP
  • Overall Diameter: 4.750 INCHES NOMINAL IN
  • Wattage Rating: 90.0 WATTS
  • Base Style: MEDIUM SCREW SKIRTED
  • Bulb Style: PAR (PARABOLIC, ALUMNIZED REFLECTOR)
  • 1 verified cross-reference
  • Primary manufacturer: Osram Sylvania Inc.
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,metal Halide, cataloged under National Stock Number 6240-01-685-7451, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Osram Sylvania Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-685-7451
Primary Part Number15539
Item NameLamp,metal Halide
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc.
StatusACTIVE
Burning PositionBASE UP
Overall Diameter4.750 INCHES NOMINAL IN
Wattage Rating90.0 WATTS
Base StyleMEDIUM SCREW SKIRTED
Bulb StylePAR (PARABOLIC, ALUMNIZED REFLECTOR)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3455-00-307-95131726-0750 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5977-00-315-7022ED15539-1 INTERCHANGEABLE
Brush,electrical Contact
Electro-Tec Corp Dba Moog Inc., Components Group
9540-00-929-1820 INTERCHANGEABLE
Angle,structural
2915-00-962-008715539 INTERCHANGEABLE
Guide,fuel Nozzle Assembly
Collins Engine Nozzles, Inc
7025-01-301-1024 INTERCHANGEABLE
Link Dashpot
5315-01-376-105015-539 INTERCHANGEABLE
Pin,shoulder,headless
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
1005-01-679-812615539 INTERCHANGEABLE
Carrier,bolt
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
15539 Osram Sylvania Inc. (USA)
Related Parts
3455-00-307-9513INTERCHANGEABLE
CUTTER,MILLING,END
1726-0750
5977-00-315-7022INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
ED15539-1
9540-00-929-1820INTERCHANGEABLE
ANGLE,STRUCTURAL
2915-00-962-0087INTERCHANGEABLE
GUIDE,FUEL NOZZLE ASSEMBLY
15539
7025-01-301-1024INTERCHANGEABLE
LINK DASHPOT
5315-01-376-1050INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
15-539
1005-01-679-8126INTERCHANGEABLE
CARRIER,BOLT
15539

Frequently Asked Questions

What is NSN 6240-01-685-7451?

NSN 6240-01-685-7451 is a Lamp,metal Halide, manufactured by Osram Sylvania Inc., classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-685-7451?

NSN 6240-01-685-7451 has 1 cross-referenced part number: 15539 (Osram Sylvania Inc.).

What NSN replaces 6240-01-685-7451?

There are 7 known substitutes for 6240-01-685-7451: 3455-00-307-9513, 5977-00-315-7022, 9540-00-929-1820 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15539?

Key specifications for 15539: Overall Length: 134.94 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: HALOGEN LAMP 90PAR38/HAL/SP; Special Features: VOLTS 120, BEAM ANGLE 9DEG, LUMENS 1,310,; Burning Position: BASE UP. 8 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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