PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31590Light Assembly,ramp Loading

Grimes Aerospace Company · NSN 6220-00-446-1623 · FSC 6220 · No Item Name Available
Verified by PartsTable
NSN 6220-00-446-1623 — this item is cataloged by the U.S. Government under National Stock Number 6220-00-446-1623. Primary manufacturer part number: 31590.
Features
  • Light Assembly,ramp Loading — FSC 6220
  • General Characteristics Item Description: RECTANGULAR SHAPED CASE WITH FRONT COVER,HANDLE AND MTG BASE; O/A LG 6.750 IN.; O/A W 2.422 IN.; O/A H 4.960 IN.; BLACK SRINKLE FINISH,ON/OFF SWITCH,LIGHT CAN BE HORIZONTALLY ADJUSTED BY MEANS OF A PIVOT SHAFT ATTACHED TO THE MOUNTING BASE; LIGHT UNIT IS REMOVABLE FROM MTG BASE FOR HAND USE W/O USING TOOLS; MTG BASE HAS TWO 0.221 IN. DIA UNTHD HOLES,50 IN. COILED CORD WITH TERMINAL LUG; RED FILTER INCLUDED IN
  • 1 verified cross-reference
  • Primary manufacturer: Grimes Aerospace Company
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Light Assembly,ramp Loading, cataloged under National Stock Number 6220-00-446-1623, is classified within Federal Supply Class 6220 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Grimes Aerospace Company. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6220-00-446-1623
Primary Part Number31590
Item NameLight Assembly,ramp Loading
FSC / FSG6220 / 62 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
General Characteristics Item DescriptionRECTANGULAR SHAPED CASE WITH FRONT COVER,HANDLE AND MTG BASE; O/A LG 6.750 IN.; O/A W 2.422 IN.; O/A H 4.960 IN.; BLACK SRINKLE FINISH,ON/OFF SWITCH,LIGHT CAN BE HORIZONTALLY ADJUSTED BY MEANS OF A PIVOT SHAFT ATTACHED TO THE MOUNTING BASE; LIGHT UNIT IS REMOVABLE FROM MTG BASE FOR HAND USE W/O USING TOOLS; MTG BASE HAS TWO 0.221 IN. DIA UNTHD HOLES,50 IN. COILED CORD WITH TERMINAL LUG; RED FILTER INCLUDED IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-100-356931590 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Nsk Corp Bearing Div
6635-00-243-5331 INTERCHANGEABLE
Tube Strobe
4810-00-455-767231590 INTERCHANGEABLE
Valve,solenoid
Moog Inc
1650-00-468-1896 INTERCHANGEABLE
Filter,fluid
4140-01-406-816744980-1 INTERCHANGEABLE
Fan,vaneaxial
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5310-01-734-6180CB27661-001 INTERCHANGEABLE
Washer,flat
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
31590 PRIMARY Grimes Aerospace Company (USA)
Related Parts
3110-00-100-3569INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
31590
6635-00-243-5331INTERCHANGEABLE
TUBE STROBE
4810-00-455-7672INTERCHANGEABLE
VALVE,SOLENOID
31590
1650-00-468-1896INTERCHANGEABLE
FILTER,FLUID
4140-01-406-8167INTERCHANGEABLE
FAN,VANEAXIAL
44980-1
5310-01-734-6180INTERCHANGEABLE
WASHER,FLAT
CB27661-001

Frequently Asked Questions

What is NSN 6220-00-446-1623?

NSN 6220-00-446-1623 is a Light Assembly,ramp Loading, manufactured by Grimes Aerospace Company, classified under FSC 6220 (No Item Name Available). Status: active.

What are the part numbers for NSN 6220-00-446-1623?

NSN 6220-00-446-1623 has 1 cross-referenced part number: 31590 (Grimes Aerospace Company).

What NSN replaces 6220-00-446-1623?

There are 6 known substitutes for 6220-00-446-1623: 3110-00-100-3569, 6635-00-243-5331, 4810-00-455-7672 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31590?

Key specifications for 31590: General Characteristics Item Description: RECTANGULAR SHAPED CASE WITH FRONT COVER,HANDLE AND MTG BASE; O/A LG 6.750 IN.; O/A W 2.422 IN.; O/A H 4.960 IN.; BLACK SRINKLE FINISH,ON/OFF SWITCH,LIGHT CAN BE HORIZONTALLY ADJUSTED BY MEANS OF A PIVOT SHAFT ATTACHED TO THE MOUNTING BASE; LIGHT UNIT IS REMOVABLE FROM MTG BASE FOR HAND USE W/O USING TOOLS; MTG BASE HAS TWO 0.221 IN. DIA UNTHD HOLES,50 IN. COILED CORD WITH TERMINAL LUG; RED FILTER INCLUDED 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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