PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18921Mount,telescope

Nikon Inc Instrument Group · NSN 6650-01-418-9471 · FSC 6650 · No Item Name Available
Verified by PartsTable
NSN 6650-01-418-9471 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-418-9471. Primary manufacturer part number: 18921.
Features
  • Mount,telescope — FSC 6650
  • Material: ALUMINUM
  • Support Type: BRACKET
  • Instrument Light Accommodation: NOT PROVIDED
  • Elevation Adjustment Mechanism: PROVIDED
  • Azimuth Adjustment Mechanism: NOT PROVIDED
  • 1 verified cross-reference
  • Primary manufacturer: Nikon Inc Instrument Group
Applications
  • Applications requiring Aluminum construction
General Description

The Mount,telescope, cataloged under National Stock Number 6650-01-418-9471, is classified within Federal Supply Class 6650 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Nikon Inc Instrument Group. 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-418-9471
Primary Part Number18921
Item NameMount,telescope
FSC / FSG6650 / 66 — No Item Name Available
ManufacturerNikon Inc Instrument Group
StatusACTIVE
MaterialALUMINUM
Support TypeBRACKET
Instrument Light AccommodationNOT PROVIDED
Elevation Adjustment MechanismPROVIDED
Azimuth Adjustment MechanismNOT PROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-167-46711-892-1 INTERCHANGEABLE
Adapter,connector
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
5340-00-369-131213109-117PCBMF INTERCHANGEABLE
Handwheel
Ward Leonard Ct Llc
5935-00-504-368430-060-1A INTERCHANGEABLE
Adapter,connector
Bell Textron Inc
6110-00-627-787218921 INTERCHANGEABLE
Kit,starter Relay
Hdt Expeditionary Systems Inc
5331-00-788-3428 INTERCHANGEABLE
O-Ring
1040-00-938-374454A50B19 INTERCHANGEABLE
Coupling,valve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5365-01-303-160318921 INTERCHANGEABLE
Bushing Blank
Coffin Turbo Pump Inc
6505-01-588-7606NDC00436-0672-16 INTERCHANGEABLE
Sodium Hypochlorite Solution
Century Pharmaceuticals Inc
Cross-Reference Index
Part NumberManufacturer
18921 PRIMARY Nikon Inc Instrument Group (USA)
Related Parts
5935-00-167-4671INTERCHANGEABLE
ADAPTER,CONNECTOR
1-892-1
5340-00-369-1312INTERCHANGEABLE
HANDWHEEL
13109-117PCBMF
5935-00-504-3684INTERCHANGEABLE
ADAPTER,CONNECTOR
30-060-1A
6110-00-627-7872INTERCHANGEABLE
KIT,STARTER RELAY
18921
5331-00-788-3428INTERCHANGEABLE
O-RING
1040-00-938-3744INTERCHANGEABLE
COUPLING,VALVE
54A50B19
5365-01-303-1603INTERCHANGEABLE
BUSHING BLANK
18921
6505-01-588-7606INTERCHANGEABLE
SODIUM HYPOCHLORITE SOLUTION
NDC00436-0672-16

Frequently Asked Questions

What is NSN 6650-01-418-9471?

NSN 6650-01-418-9471 is a Mount,telescope, manufactured by Nikon Inc Instrument Group, classified under FSC 6650 (No Item Name Available). Status: active.

What are the part numbers for NSN 6650-01-418-9471?

NSN 6650-01-418-9471 has 1 cross-referenced part number: 18921 (Nikon Inc Instrument Group).

What NSN replaces 6650-01-418-9471?

There are 8 known substitutes for 6650-01-418-9471: 5935-00-167-4671, 5340-00-369-1312, 5935-00-504-3684 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18921?

Key specifications for 18921: End Item Identification: AIM-19; Material: ALUMINUM; Support Type: BRACKET; Instrument Light Accommodation: NOT PROVIDED. 7 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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