PartsTable TECHNICAL DATA SHEET
NSN 6650-01-540-4402Government record, cited

Fiberscope6650-01-540-4402

NSN 6650-01-540-4402 · NIIN 015404402 · Part number FM-C400
Westover Scientific Inc. Dba Advanced Microscopy Group · FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment · CAGE 3A8C7
Government record, cited
NSN 6650-01-540-4402 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-540-4402. Manufacturer of record part number: FM-C400.
Also searched as  6650-01-540-4402 · 6650015404402 · NIIN 015404402 · 01-540-4402 · FSC 6650 Optical Instruments, Test Equipment, Components and Accessories · CAGE 3A8C7 · FM-C400 · 40081418
Nearby stock numbers  ·
Features
  • Fiberscope — FSC 6650
  • Magnification: 400.0X NOMINAL
  • Accessory Components and Quantity: UNIVERSAL 2.5MM ADAPTER 1 MM
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Westover Scientific Inc. Dba Advanced Microscopy Group
Identification
  • NSN: 6650-01-540-4402
  • NIIN: 015404402
  • FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: FM-C400
  • Manufacturer: Westover Scientific Inc. Dba Advanced Microscopy Group
General Description

The Fiberscope, cataloged under National Stock Number 6650-01-540-4402, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Westover Scientific Inc. Dba Advanced Microscopy Group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-540-4402
Primary Part NumberFM-C400
Item NameFiberscope
FSC / FSG6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories
ManufacturerWestover Scientific Inc. Dba Advanced Microscopy Group
StatusACTIVE
Magnification400.0X NOMINAL
Accessory Components and QuantityUNIVERSAL 2.5MM ADAPTER 1 MM
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6650-01-735-6691FMC-400 POSSIBLE MATCH
MICROSCOPE,OPTICAL
Possible match (shared part number)Fiber Instrument Sales, Inc.
Cross-Reference Index
Part NumberManufacturer
40081418 Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR)
FM-C400 PRIMARY Westover Scientific Inc. Dba Advanced Microscopy Group (USA)
Related Parts
6650-01-735-6691POSSIBLE MATCH
MICROSCOPE,OPTICAL
FMC-400

Frequently Asked Questions

What is NSN 6650-01-540-4402?

NSN 6650-01-540-4402 is a Fiberscope, manufactured by Westover Scientific Inc. Dba Advanced Microscopy Group, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.

What part numbers are listed for NSN 6650-01-540-4402?

NSN 6650-01-540-4402 has 2 manufacturer part numbers on file: 40081418 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)), FM-C400 (Westover Scientific Inc. Dba Advanced Microscopy Group).

What NSN replaces 6650-01-540-4402?

1 possible match (shared part number, not a government interchangeability claim): 6650-01-735-6691. Verify interchangeability with system specifications before substitution.

What are the specifications of FM-C400?

Key specifications for FM-C400: Magnification: 400.0X NOMINAL; Accessory Components and Quantity: UNIVERSAL 2.5MM ADAPTER 1 MM. 2 specifications are documented in the U.S. Government catalog.

Is NSN 6650-01-540-4402 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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