PartsTable TECHNICAL DATA SHEET
NSN 6650-01-042-3564Government record, cited

Adapter, Eyepiece6650-01-042-3564

NSN 6650-01-042-3564 · NIIN 010423564 · Part number M250-242
Gaertner Scientific Corporation · FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment · CAGE 23876
Government record, cited
NSN 6650-01-042-3564 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-042-3564. Manufacturer of record part number: M250-242.
Also searched as  6650-01-042-3564 · 6650010423564 · NIIN 010423564 · 01-042-3564 · FSC 6650 Optical Instruments, Test Equipment, Components and Accessories · CAGE 23876 · M250-242
Nearby stock numbers  ·
Features
  • Adapter,eyepiece — FSC 6650
  • General Characteristics Item Description: 90 DEG CROSS HAIRS; 20.3 MM DIA; USED W/ M242 EYEPIECE MM
  • 1 manufacturer part number on file
  • Manufacturer of record: Gaertner Scientific Corporation
Identification
  • NSN: 6650-01-042-3564
  • NIIN: 010423564
  • FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: M250-242
  • Manufacturer: Gaertner Scientific Corporation
General Description

The Adapter,eyepiece, cataloged under National Stock Number 6650-01-042-3564, 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 Gaertner Scientific Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-042-3564
Primary Part NumberM250-242
Item NameAdapter,eyepiece
FSC / FSG6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories
ManufacturerGaertner Scientific Corporation
StatusACTIVE
General Characteristics Item Description90 DEG CROSS HAIRS; 20.3 MM DIA; USED W/ M242 EYEPIECE MM
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
M250-242 PRIMARY Gaertner Scientific Corporation (USA)
No interchangeability data on file.
Other items in FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6650-00-000-0164
6650-00-000-0164 · Item name not on file
6650-00-001-2319
ARM,SHUTTER,SPECTROMETER
6650-00-001-2322
PLATE,MOUNTING,SPECTROMETER LAMP
6650-00-001-2323
LENS,OPTICAL INSTRUMENT
6650-00-001-2324
PLATE,SPECTROMETER DOOR
6650-00-001-2326
NOZZLE,AIR,SPECTROMETER
6650-00-001-2327
PLATE,LEFT,SPECTROMETER
6650-00-001-2328
6650-00-001-2328 · Item name not on file

Frequently Asked Questions

What is NSN 6650-01-042-3564?

NSN 6650-01-042-3564 is a Adapter,eyepiece, manufactured by Gaertner Scientific Corporation, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.

What part numbers are listed for NSN 6650-01-042-3564?

NSN 6650-01-042-3564 has 1 manufacturer part number on file: M250-242 (Gaertner Scientific Corporation).

What are the specifications of M250-242?

Key specifications for M250-242: General Characteristics Item Description: 90 DEG CROSS HAIRS; 20.3 MM DIA; USED W/ M242 EYEPIECE MM. 1 specification is documented in the U.S. Government catalog.

Is NSN 6650-01-042-3564 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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