PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TR300Transit

Instrument Sales and Service Inc · NSN 6675-01-238-6597 · FSC 6675 · No Item Name Available
Verified by PartsTable
NSN 6675-01-238-6597 — this item is cataloged by the U.S. Government under National Stock Number 6675-01-238-6597. Primary manufacturer part number: TR300.
Features
  • Transit — FSC 6675
  • Sighting Device Type: TELESCOPE
  • Carrying Case: PROVIDED
  • Tripod: INCLUDED
  • Horizontal Circle Diameter: 4.500 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
  • Compass: INCLUDED
  • 3 verified cross-references
  • Primary manufacturer: Instrument Sales and Service Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transit, cataloged under National Stock Number 6675-01-238-6597, is classified within Federal Supply Class 6675 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Instrument Sales and Service Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6675-01-238-6597
Primary Part NumberTR300
Item NameTransit
FSC / FSG6675 / 66 — No Item Name Available
ManufacturerInstrument Sales and Service Inc
StatusACTIVE
Sighting Device TypeTELESCOPE
Carrying CasePROVIDED
TripodINCLUDED
Horizontal Circle Diameter4.500 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
CompassINCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
7710-00-267-5367TR300 INTERCHANGEABLE
Trumpet
Selmer Co the
5999-01-071-4201TR300 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Grimes Aerospace Company
5820-01-586-0632TR-300 INTERCHANGEABLE
Transmitter,radio
Bosch Security Systems, Llc
Cross-Reference Index
Part NumberManufacturer
TR300 Instrument Sales and Service Inc (USA)
GG-T-621C Federal Specifications Promulgated by General Services Administration Washington DC (USA)
TR300 Realist Inc David White Instrument Div (USA)
Related Parts
7710-00-267-5367INTERCHANGEABLE
TRUMPET
TR300
5999-01-071-4201INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
TR300
5820-01-586-0632INTERCHANGEABLE
TRANSMITTER,RADIO
TR-300

Frequently Asked Questions

What is NSN 6675-01-238-6597?

NSN 6675-01-238-6597 is a Transit, manufactured by Instrument Sales and Service Inc, classified under FSC 6675 (No Item Name Available). Status: active.

What are the part numbers for NSN 6675-01-238-6597?

NSN 6675-01-238-6597 has 3 cross-referenced part numbers: TR300 (Instrument Sales and Service Inc), GG-T-621C (Federal Specifications Promulgated by General Services Administration Washington DC), TR300 (Realist Inc David White Instrument Div).

What NSN replaces 6675-01-238-6597?

There are 3 known substitutes for 6675-01-238-6597: 7710-00-267-5367, 5999-01-071-4201, 5820-01-586-0632. Verify interchangeability with system specifications before substitution.

What are the specifications of TR300?

Key specifications for TR300: Sighting Device Type: TELESCOPE; Carrying Case: PROVIDED; Tripod: INCLUDED; Horizontal Circle Diameter: 4.500 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN. 5 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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