PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10420Lamp for Vision Tester

Stereo Optical Company, Inc · NSN 6540-01-512-7395 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-512-7395 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-512-7395. Primary manufacturer part number: 10420.
Features
  • Lamp for Vision Tester — FSC 6540
  • 2 verified cross-references
  • Primary manufacturer: Stereo Optical Company, Inc
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp for Vision Tester, cataloged under National Stock Number 6540-01-512-7395, 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 Stereo Optical Company, Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-512-7395
Primary Part Number10420
Item NameLamp for Vision Tester
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerStereo Optical Company, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
4720-00-203-3903 INTERCHANGEABLE
Hose Assembly,nonmetallic
4320-00-218-390710420 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
5342-00-432-1557522111E-588-Z INTERCHANGEABLE
Coupling,clamp,grooved
Voss Industries, Llc
6625-00-450-2067 INTERCHANGEABLE
Voltmeter
3455-00-554-731910420 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
4720-00-764-6741 INTERCHANGEABLE
Hose Assembly,nonmetallic
4730-00-813-7558104-20 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Crane Carrier Company, Llc
5977-00-947-402910420 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5935-01-033-8442PL93-6B INTERCHANGEABLE
Connector,plug,electrical
Trompeter Electronics, Inc.
4820-01-189-4693 INTERCHANGEABLE
Retainer,ball
Cross-Reference Index
Part NumberManufacturer
10420 PRIMARY Stereo Optical Company, Inc (USA)
LLH-55-7146 Naval Medical Material Support Command Detachment (USA)
Related Parts
4720-00-203-3903INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4320-00-218-3907INTERCHANGEABLE
RING,WEARING
10420
5342-00-432-1557INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
522111E-588-Z
6625-00-450-2067INTERCHANGEABLE
VOLTMETER
3455-00-554-7319INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10420
4720-00-764-6741INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4730-00-813-7558INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
104-20
5977-00-947-4029INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10420
5935-01-033-8442INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
PL93-6B
4820-01-189-4693INTERCHANGEABLE
RETAINER,BALL
4820-01-276-3496INTERCHANGEABLE
PARTS KIT,LINEAR DIRECTIONAL CON
10420
5365-01-533-8980INTERCHANGEABLE
BUSHING,MACHINE THREAD
10420

Frequently Asked Questions

What is NSN 6540-01-512-7395?

NSN 6540-01-512-7395 is a Lamp for Vision Tester, manufactured by Stereo Optical Company, Inc, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-512-7395?

NSN 6540-01-512-7395 has 2 cross-referenced part numbers: 10420 (Stereo Optical Company, Inc), LLH-55-7146 (Naval Medical Material Support Command Detachment).

What NSN replaces 6540-01-512-7395?

There are 12 known substitutes for 6540-01-512-7395: 4720-00-203-3903, 4320-00-218-3907, 5342-00-432-1557 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10420?

Key specifications for 10420: Part Name Assigned by Controlling Agency: LAMP FOR VISION TESTER MODEL 900 EA; Special Features: LAMP FOR 900 VISION TESTER. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com