PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

643915Control,directional,automatic Pi

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 6615-00-514-5731 · FSC 6615 · No Item Name Available
Verified by PartsTable
NSN 6615-00-514-5731 — this item is cataloged by the U.S. Government under National Stock Number 6615-00-514-5731. Primary manufacturer part number: 643915.
Features
  • Control,directional,automatic Pi — FSC 6615
  • Indication Method: TRANSMITTING DIAL
  • Power Source: SELF-CONTAINED
  • Intelligence Data Handling Capability: GYROSCOPE-ALTITUDE DATA TRANSMITTING AUTOMATIC AND RUDDER TRANSMITTING AUTOMATIC
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THEWITH RADIOACTIVE DIAL MARKINGS
  • Maximum Overall Height: 7.062 INCHES IN
  • Maximum Outside Diameter: 2.125 INCHES IN
  • Nonelectrical Connection Type and Quantity: 1 BEADED AND 4 UNTHREADED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Control,directional,automatic Pi, cataloged under National Stock Number 6615-00-514-5731, is classified within Federal Supply Class 6615 (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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6615-00-514-5731
Primary Part Number643915
Item NameControl,directional,automatic Pi
FSC / FSG6615 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Indication MethodTRANSMITTING DIAL
Power SourceSELF-CONTAINED
Intelligence Data Handling CapabilityGYROSCOPE-ALTITUDE DATA TRANSMITTING AUTOMATIC AND RUDDER TRANSMITTING AUTOMATIC
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY THEWITH RADIOACTIVE DIAL MARKINGS
Maximum Overall Height7.062 INCHES IN
Maximum Outside Diameter2.125 INCHES IN
Nonelectrical Connection Type and Quantity1 BEADED AND 4 UNTHREADED
Maximum Overall Length12.000 INCHES IN
Mounting MethodBRACKET(S)
Maximum Overall Width5.062 INCHES IN
Air Suction Rating119.4 TORR
Radioactive ContentCONTAINS RADIOACTIVE MATERIAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5920-00-053-8958 INTERCHANGEABLE
Fuseholder,extractor Post
5310-00-281-5398109532 INTERCHANGEABLE
Nut,plain,hexagon
Am General Llc
2920-00-362-1412A1587 INTERCHANGEABLE
Spring
Am General Llc
6615-00-514-5732 INTERCHANGEABLE
Control,directional,automatic Pi
Cross-Reference Index
Part NumberManufacturer
643915 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
643912 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5920-00-053-8958INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
5310-00-281-5398INTERCHANGEABLE
NUT,PLAIN,HEXAGON
109532
2920-00-362-1412INTERCHANGEABLE
SPRING
A1587
6615-00-514-5732INTERCHANGEABLE
CONTROL,DIRECTIONAL,AUTOMATIC PI

Frequently Asked Questions

What is NSN 6615-00-514-5731?

NSN 6615-00-514-5731 is a Control,directional,automatic Pi, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 6615 (No Item Name Available). Status: active.

What are the part numbers for NSN 6615-00-514-5731?

NSN 6615-00-514-5731 has 2 cross-referenced part numbers: 643915 (Lockheed Martin Corporation Div Rms - Mitchel Field), 643912 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 6615-00-514-5731?

There are 4 known substitutes for 6615-00-514-5731: 5920-00-053-8958, 5310-00-281-5398, 2920-00-362-1412 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 643915?

Key specifications for 643915: Indication Method: TRANSMITTING DIAL; Power Source: SELF-CONTAINED; Intelligence Data Handling Capability: GYROSCOPE-ALTITUDE DATA TRANSMITTING AUTOMATIC AND RUDDER TRANSMITTING AUTOMATIC; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THEWITH RADIOACTIVE DIAL MARKINGS. 12 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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