PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100-344Disc,plotting Board

Naval Observatory · NSN 6660-00-551-1887 · FSC 6660 · No Item Name Available
Verified by PartsTable
NSN 6660-00-551-1887 — this item is cataloged by the U.S. Government under National Stock Number 6660-00-551-1887. Primary manufacturer part number: 100-344.
Features
  • Disc,plotting Board — FSC 6660
  • Reference Number Differentiating Characteristics: 36 IN. BY 36 IN. IN
  • 1 verified cross-reference
  • Primary manufacturer: Naval Observatory
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disc,plotting Board, cataloged under National Stock Number 6660-00-551-1887, is classified within Federal Supply Class 6660 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Naval Observatory. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6660-00-551-1887
Primary Part Number100-344
Item NameDisc,plotting Board
FSC / FSG6660 / 66 — No Item Name Available
ManufacturerNaval Observatory
StatusACTIVE
Reference Number Differentiating Characteristics36 IN. BY 36 IN. IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-126-00913227-3088-0 INTERCHANGEABLE
Shaft,selector
Kidde Fire Fighting, Inc. Div National Foam
6675-00-575-32312577713-2 INTERCHANGEABLE
Protractor,circular
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5365-00-998-0147100344 INTERCHANGEABLE
Plug,machine Thread
Woodward Hrt Inc
5920-01-604-4033100344 INTERCHANGEABLE
Fuse Assortment
Danfoss Turbocor Compressors Inc.
6020-01-660-9239100344 INTERCHANGEABLE
Cable Assembly,single Bundle,fib
L3 Technologies, Inc. Div L3 Keo
Cross-Reference Index
Part NumberManufacturer
100-344 Naval Observatory (USA)
Related Parts
3040-00-126-0091INTERCHANGEABLE
SHAFT,SELECTOR
3227-3088-0
6675-00-575-3231INTERCHANGEABLE
PROTRACTOR,CIRCULAR
2577713-2
5365-00-998-0147INTERCHANGEABLE
PLUG,MACHINE THREAD
100344
5920-01-604-4033INTERCHANGEABLE
FUSE ASSORTMENT
100344
6020-01-660-9239INTERCHANGEABLE
CABLE ASSEMBLY,SINGLE BUNDLE,FIB
100344

Frequently Asked Questions

What is NSN 6660-00-551-1887?

NSN 6660-00-551-1887 is a Disc,plotting Board, manufactured by Naval Observatory, classified under FSC 6660 (No Item Name Available). Status: active.

What are the part numbers for NSN 6660-00-551-1887?

NSN 6660-00-551-1887 has 1 cross-referenced part number: 100-344 (Naval Observatory).

What NSN replaces 6660-00-551-1887?

There are 5 known substitutes for 6660-00-551-1887: 3040-00-126-0091, 6675-00-575-3231, 5365-00-998-0147 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100-344?

Key specifications for 100-344: Reference Number Differentiating Characteristics: 36 IN. BY 36 IN. IN. 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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