PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1025Bulb,slit Lamp,ophthalmic

Lombart Brothers, Inc. · NSN 6540-01-486-6519 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-486-6519 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-486-6519. Primary manufacturer part number: B1025.
Features
  • Bulb,slit Lamp,ophthalmic — FSC 6540
  • 2 verified cross-references
  • Primary manufacturer: Lombart Brothers, Inc.
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Bulb,slit Lamp,ophthalmic, cataloged under National Stock Number 6540-01-486-6519, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Lombart Brothers, Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-486-6519
Primary Part NumberB1025
Item NameBulb,slit Lamp,ophthalmic
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerLombart Brothers, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
5935-00-805-2538PAJ0017 INTERCHANGEABLE
Connector,plug,electrical
Phaostron Instrument and Electronic Company
3120-00-847-6287 INTERCHANGEABLE
Bearing,sleeve
2040-00-949-8444010304 INTERCHANGEABLE
Autocoupler,female
L3 Technologies, Inc. Div L3 Keo
5945-01-064-9648010-304 INTERCHANGEABLE
Flasher,thermal
Acd Tridon Inc
6520-01-352-387708-000-87 INTERCHANGEABLE
Wire,nonelectrical
Ace Surgical Supply Co., Inc.
5930-01-530-1275B1025 INTERCHANGEABLE
Switch,electronic
Lockheed Martin Corporation Div Rms - Manassas
4820-01-706-2622B-1025 INTERCHANGEABLE
Valve,cross
T and S Brass and Bronze Works Inc
Cross-Reference Index
Part NumberManufacturer
B1025 PRIMARY Lombart Brothers, Inc. (USA)
01-0304 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
5935-00-805-2538INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
PAJ0017
3120-00-847-6287INTERCHANGEABLE
BEARING,SLEEVE
2040-00-949-8444INTERCHANGEABLE
AUTOCOUPLER,FEMALE
010304
5945-01-064-9648INTERCHANGEABLE
FLASHER,THERMAL
010-304
6520-01-352-3877INTERCHANGEABLE
WIRE,NONELECTRICAL
08-000-87
5930-01-530-1275INTERCHANGEABLE
SWITCH,ELECTRONIC
B1025
4820-01-706-2622INTERCHANGEABLE
VALVE,CROSS
B-1025

Frequently Asked Questions

What is NSN 6540-01-486-6519?

NSN 6540-01-486-6519 is a Bulb,slit Lamp,ophthalmic, manufactured by Lombart Brothers, Inc., classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-486-6519?

NSN 6540-01-486-6519 has 2 cross-referenced part numbers: B1025 (Lombart Brothers, Inc.), 01-0304 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6540-01-486-6519?

There are 7 known substitutes for 6540-01-486-6519: 5935-00-805-2538, 3120-00-847-6287, 2040-00-949-8444 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1025?

Key specifications for B1025: End Item Identification: FOR USE WITH END ITEMS 6540-01-247-4937 AND 6540-01-241-6965; Special Features: TOP CON; SL3/3D/OLD STYLE3E 5D/6E SLIT LAMP MAIN BULB; TUNGSTEN; 6 V; 4.5 A V; Part Name Assigned by Controlling Agency: BULB SPLIT LAMP OPHTHALMIC TOP CON SL3/3D/OLD STYLE3E 5D/6E SPLI. 3 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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