PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8821Mechasim Unit

Belfort Instrument Company · NSN 6660-00-921-7967 · FSC 6660 · No Item Name Available
Verified by PartsTable
NSN 6660-00-921-7967 — this item is cataloged by the U.S. Government under National Stock Number 6660-00-921-7967. Primary manufacturer part number: 8821.
Features
  • Mechasim Unit — FSC 6660
  • 1 verified cross-reference
  • Primary manufacturer: Belfort Instrument Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mechasim Unit, cataloged under National Stock Number 6660-00-921-7967, is classified within Federal Supply Class 6660 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Belfort Instrument Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6660-00-921-7967
Primary Part Number8821
Item NameMechasim Unit
FSC / FSG6660 / 66 — No Item Name Available
ManufacturerBelfort Instrument Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2825-00-146-42418821 INTERCHANGEABLE
Piston
Northrop Grumman Systems Corporation Div Marine Systems
5305-00-149-969392938 INTERCHANGEABLE
Screw,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5305-00-286-02918821 INTERCHANGEABLE
Screw,machine
Triumph Engine Control Systems Llc
4910-00-403-8167 INTERCHANGEABLE
Chuck Rod,movable
5950-00-464-25115T806 INTERCHANGEABLE
Transformer,power
Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc
5995-00-617-088523990SP INTERCHANGEABLE
Cord Assembly,electrical
Roanwell, Llc
5975-00-925-93158821 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5960-01-019-8760 INTERCHANGEABLE
Electron Tube
5895-01-101-62998821 INTERCHANGEABLE
Divider,power,radio Frequency
Marc Alan Group the, Inc
5330-01-139-61018821 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
Cross-Reference Index
Part NumberManufacturer
8821 PRIMARY Belfort Instrument Company (USA)
Related Parts
2825-00-146-4241INTERCHANGEABLE
PISTON
8821
5305-00-149-9693INTERCHANGEABLE
SCREW,MACHINE
92938
5305-00-286-0291INTERCHANGEABLE
SCREW,MACHINE
8821
4910-00-403-8167INTERCHANGEABLE
CHUCK ROD,MOVABLE
5950-00-464-2511INTERCHANGEABLE
TRANSFORMER,POWER
5T806
5995-00-617-0885INTERCHANGEABLE
CORD ASSEMBLY,ELECTRICAL
23990SP
5975-00-925-9315INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
8821
5960-01-019-8760INTERCHANGEABLE
ELECTRON TUBE
5895-01-101-6299INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
8821
5330-01-139-6101INTERCHANGEABLE
SEAL,PLAIN ENCASED
8821
6740-01-224-8607INTERCHANGEABLE
FRAME,PHOTOGRAPHIC PRINTING
5950-01-244-0515INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
NH12393

Frequently Asked Questions

What is NSN 6660-00-921-7967?

NSN 6660-00-921-7967 is a Mechasim Unit, manufactured by Belfort Instrument Company, classified under FSC 6660 (No Item Name Available). Status: active.

What are the part numbers for NSN 6660-00-921-7967?

NSN 6660-00-921-7967 has 1 cross-referenced part number: 8821 (Belfort Instrument Company).

What NSN replaces 6660-00-921-7967?

There are 12 known substitutes for 6660-00-921-7967: 2825-00-146-4241, 5305-00-149-9693, 5305-00-286-0291 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8821?

Key specifications for 8821: End Item Identification: ANEMOMETER, 3-CUP, 1/60MILE CONTACTING, NON-TOTALIZING, SA-TYPE. 1 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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