PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGT621Transit

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 6675-00-514-5484 · FSC 6675 · No Item Name Available
Verified by PartsTable
NSN 6675-00-514-5484 — this item is cataloged by the U.S. Government under National Stock Number 6675-00-514-5484. Primary manufacturer part number: GGT621.
Features
  • Transit — FSC 6675
  • Telescope Level Vial: INCLUDED
  • Nondefinitive Spec/std Data: 1 TYPE AND B CLASS
  • Vertical Circle Stadia Arc Graduation: NOT INCLUDED
  • Illuminated Feature: NOT INCLUDED
  • Accessory Components and Quantity: BOOK,INSTRUCTION 1,BRUSH,LENS 1,CAP,OBJECTIVE 1,COVER,WATERPROOF 1,EYEPIECE,PRISM,DARK 1,GLASS,MAGNIFYING,3.500 DIA 1,LUBRICANT,0.250 OZ TUBE 1,PINS,ADJUSTING 2,PLUMB BOB,16 OZ W/CORD AND ADJUSTOR 1,REFLECTOR,CROSS HAIR 1,SCREWDRIVER 1,VIAL,LEVEL,PLATE 2,VIAL,LEVEL,TELESCOPE 1,AS REQUIRED FOR FIELD STRIPPING WRENCHES OZ
  • Vertical Circle: INCLUDED
  • Compass: INCLUDED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transit, cataloged under National Stock Number 6675-00-514-5484, is classified within Federal Supply Class 6675 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6675-00-514-5484
Primary Part NumberGGT621
Item NameTransit
FSC / FSG6675 / 66 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Telescope Level VialINCLUDED
Nondefinitive Spec/std Data1 TYPE AND B CLASS
Vertical Circle Stadia Arc GraduationNOT INCLUDED
Illuminated FeatureNOT INCLUDED
Accessory Components and QuantityBOOK,INSTRUCTION 1,BRUSH,LENS 1,CAP,OBJECTIVE 1,COVER,WATERPROOF 1,EYEPIECE,PRISM,DARK 1,GLASS,MAGNIFYING,3.500 DIA 1,LUBRICANT,0.250 OZ TUBE 1,PINS,ADJUSTING 2,PLUMB BOB,16 OZ W/CORD AND ADJUSTOR 1,REFLECTOR,CROSS HAIR 1,SCREWDRIVER 1,VIAL,LEVEL,PLATE 2,VIAL,LEVEL,TELESCOPE 1,AS REQUIRED FOR FIELD STRIPPING WRENCHES OZ
Vertical CircleINCLUDED
CompassINCLUDED
Diameter Magnifying Power22.0 NOMINAL
Focusing TypeINTERNAL
Horizontal Circle Minimum Graduation Unit30.0 MINUTES
Departure From Cited DocumentONE
Vertical Circle Minimum Vernier Graduation Unit1.0 MINUTES
Leg TypeEXTENSION
Vertical Circle Minimum Graduation Unit30.0 MINUTES
Horizontal Circle Vernier Quantity2
TripodINCLUDED
Telescope TypeERECTING
Reference Number Differentiating CharacteristicsPACS,BCTD,AMYJ AND BCFM
Auxiliary TelescopeNOT INCLUDED
Horizontal Circle Diameter5.656 INCHES NOMINAL IN
Telescope Length11.000 INCHES NOMINAL IN
Carrying CasePROVIDED
Horizontal Circle Vernier Graduation Unit1.0 MINUTES
Sighting Device TypeTELESCOPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6675-00-049-8034 INTERCHANGEABLE
Transit
6675-00-222-2505780030 INTERCHANGEABLE
Tripod,surveying
Keuffel and Esser Co
6675-00-241-8032 INTERCHANGEABLE
Transit
6675-00-599-7019 INTERCHANGEABLE
Transit
Cross-Reference Index
Part NumberManufacturer
GGT621 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
182 Gurley Precision Instruments Inc (USA)
Related Parts
6675-00-049-8034INTERCHANGEABLE
TRANSIT
6675-00-222-2505INTERCHANGEABLE
TRIPOD,SURVEYING
780030
6675-00-241-8032INTERCHANGEABLE
TRANSIT
6675-00-599-7019INTERCHANGEABLE
TRANSIT

Frequently Asked Questions

What is NSN 6675-00-514-5484?

NSN 6675-00-514-5484 is a Transit, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 6675 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6675-00-514-5484?

NSN 6675-00-514-5484 has 2 cross-referenced part numbers: GGT621 (Federal Specifications Promulgated by General Services Administration Washington DC), 182 (Gurley Precision Instruments Inc).

What NSN replaces 6675-00-514-5484?

There are 4 known substitutes for 6675-00-514-5484: 6675-00-049-8034, 6675-00-222-2505, 6675-00-241-8032 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGT621?

Key specifications for GGT621: Telescope Level Vial: INCLUDED; Nondefinitive Spec/std Data: 1 TYPE AND B CLASS; Vertical Circle Stadia Arc Graduation: NOT INCLUDED; Illuminated Feature: NOT INCLUDED. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6675-00-514-5484 still in active supply?

NSN 6675-00-514-5484 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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