PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

674090Indicator,heading,gyroscopic

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 6610-00-515-6458 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-00-515-6458 — this item is cataloged by the U.S. Government under National Stock Number 6610-00-515-6458. Primary manufacturer part number: 674090.
Features
  • Indicator,heading,gyroscopic — FSC 6610
  • Accuracy Rating: 2.0 DEGREE QUADRANTS ALL INDICATORS DEGREE FAHRENHEIT
  • Scale Marking Transparency: FLUORESCENT
  • Nondefinitive Spec/std Data: C-5C TYPE
  • Scale Marking: NUMERALS AND LINED INCREMENTS
  • Depth: 7.812 INCHES NOMINAL IN
  • Electrical Connection Identifying Number: TYPE NO. AN31020-10SL-3P
  • Mounting Facility Type and Quantity: 1 THREADED BEZEL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,heading,gyroscopic, cataloged under National Stock Number 6610-00-515-6458, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN6610-00-515-6458
Primary Part Number674090
Item NameIndicator,heading,gyroscopic
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Accuracy Rating2.0 DEGREE QUADRANTS ALL INDICATORS DEGREE FAHRENHEIT
Scale Marking TransparencyFLUORESCENT
Nondefinitive Spec/std DataC-5C TYPE
Scale MarkingNUMERALS AND LINED INCREMENTS
Depth7.812 INCHES NOMINAL IN
Electrical Connection Identifying NumberTYPE NO. AN31020-10SL-3P
Mounting Facility Type and Quantity1 THREADED BEZEL
Height5.250 INCHES NOMINAL IN
Electrical Connection Quantity1
Current TypeAC
Width5.000 INCHES NOMINAL IN
Contact Quantity3
PhaseTHREE
Frequency Rating400.0 HERTZ NOMINAL
Knob Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3455-00-268-9691 INTERCHANGEABLE
File,rotary
6610-00-360-271316800-1A1A1 INTERCHANGEABLE
Indicator,heading,gyroscopic
Honeywell Intl Inc Defense Avionics Systems
6610-00-514-616817100-1A1A1 INTERCHANGEABLE
Indicator,heading,gyroscopic
Honeywell Intl Inc Defense Avionics Systems
6720-01-095-6006C-5C INTERCHANGEABLE
Camera,still Picture
Tektronix, Inc.
6605-01-116-4009C5L INTERCHANGEABLE
Compass,magnetic,mounted
Ametek, Inc. Div Aerospace & Defense
Cross-Reference Index
Part NumberManufacturer
MILI5741 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
674090 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
C5C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3455-00-268-9691INTERCHANGEABLE
FILE,ROTARY
6610-00-360-2713INTERCHANGEABLE
INDICATOR,HEADING,GYROSCOPIC
16800-1A1A1
6610-00-514-6168INTERCHANGEABLE
INDICATOR,HEADING,GYROSCOPIC
17100-1A1A1
6720-01-095-6006INTERCHANGEABLE
CAMERA,STILL PICTURE
C-5C
6605-01-116-4009INTERCHANGEABLE
COMPASS,MAGNETIC,MOUNTED
C5L

Frequently Asked Questions

What is NSN 6610-00-515-6458?

NSN 6610-00-515-6458 is a Indicator,heading,gyroscopic, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 6610 (No Item Name Available). Status: active.

What are the part numbers for NSN 6610-00-515-6458?

NSN 6610-00-515-6458 has 3 cross-referenced part numbers: MILI5741 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 674090 (Lockheed Martin Corporation Div Rms - Mitchel Field), C5C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6610-00-515-6458?

There are 5 known substitutes for 6610-00-515-6458: 3455-00-268-9691, 6610-00-360-2713, 6610-00-514-6168 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 674090?

Key specifications for 674090: Accuracy Rating: 2.0 DEGREE QUADRANTS ALL INDICATORS DEGREE FAHRENHEIT; Scale Marking Transparency: FLUORESCENT; Nondefinitive Spec/std Data: C-5C TYPE; Scale Marking: NUMERALS AND LINED INCREMENTS. 15 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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