PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521310-991Light,indicator

Dialight Corporation · NSN 6210-00-504-0237 · FSC 6210 · No Item Name Available
Verified by PartsTable
NSN 6210-00-504-0237 — this item is cataloged by the U.S. Government under National Stock Number 6210-00-504-0237. Primary manufacturer part number: 521310-991.
Features
  • Light,indicator — FSC 6210
  • Transmitted Light Color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
  • Material: COPPER ALLOY BODY
  • Lens Color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Furnished Items and Quantity: 1 HEXAGON NUT AND 1 LOCK WASHER
  • Lens Light Transmission Characteristic: TRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
  • Panel Thickness for Which Designed: 0.062 INCHES NOMINAL IN
  • Overall Diameter: 0.625 INCHES NOMINAL IN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
  • Applications requiring Copper Alloy Body construction
General Description

The Light,indicator, cataloged under National Stock Number 6210-00-504-0237, is classified within Federal Supply Class 6210 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Dialight Corporation. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6210-00-504-0237
Primary Part Number521310-991
Item NameLight,indicator
FSC / FSG6210 / 62 — No Item Name Available
ManufacturerDialight Corporation
StatusCANCELLED
Transmitted Light ColorRED SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A
MaterialCOPPER ALLOY BODY
Lens ColorRED SINGLE LIGHT FIRST POSITION HORIZONTAL
Furnished Items and Quantity1 HEXAGON NUT AND 1 LOCK WASHER
Lens Light Transmission CharacteristicTRANSLUCENT SINGLE LIGHT FIRST POSITION HORIZONTAL
Panel Thickness for Which Designed0.062 INCHES NOMINAL IN
Overall Diameter0.625 INCHES NOMINAL IN
Lens TypeSTOVEPIPE, EXTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL
Lamp Bulb Size DesignatorT-3 1/4
Mounting MethodPANEL LOCATION NOT OTHERWISE SPECIFIED
Mounting MethodSCREW IN LENS
Lens Face Surface ConditionSMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL
Terminal Type and Quantity2 SCREW
Lens Quantity1
Lamp Base Type AccommodatedMINIATURE BAYONET
Panel Accommodation Hole Diameter0.688 INCHES NOMINAL IN
Lamp Type Accommodated and Quantity1 INCANDESCENT
Style DesignatorROUND FRAME, ROUND LENS TYPE
Lens Back Surface ConditionFLUTED SINGLE LIGHT FIRST POSITION HORIZONTAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6350-00-071-2767160-10A INTERCHANGEABLE
Diaphragm,horn
Magnatrol Valve Corp Div Clark-Cooper
5935-00-153-4365534773-1 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
4720-00-278-1107160-10 INTERCHANGEABLE
Hose,nonmetallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
6505-00-348-701116010 INTERCHANGEABLE
Acetaminophen and Phenyltoloxami
Goldline Laboratories, Inc. Dba Goldline Laboratories
3030-00-529-0495 INTERCHANGEABLE
Belt,v
5950-01-042-2946662-0380-040 INTERCHANGEABLE
Transformer,power
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
7510-01-097-4506101994 INTERCHANGEABLE
Typing Element
Federal Marketing Co Div of Virginia Impression Products Inc
3110-01-198-8044645021146 INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
3110-01-236-744401515 INTERCHANGEABLE
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Neuhaus Lp
6505-01-240-31466119 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
521310-991 PRIMARY Dialight Corporation (USA)
8527032 PRIMARY Us Army Aviation and Missile Command (USA)
16010 PRIMARY Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
19019 PRIMARY Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
Related Parts
6350-00-071-2767INTERCHANGEABLE
DIAPHRAGM,HORN
160-10A
5935-00-153-4365INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
534773-1
4720-00-278-1107INTERCHANGEABLE
HOSE,NONMETALLIC
160-10
6505-00-348-7011INTERCHANGEABLE
ACETAMINOPHEN AND PHENYLTOLOXAMI
16010
3030-00-529-0495INTERCHANGEABLE
BELT,V
5950-01-042-2946INTERCHANGEABLE
TRANSFORMER,POWER
662-0380-040
7510-01-097-4506INTERCHANGEABLE
TYPING ELEMENT
101994
3110-01-198-8044INTERCHANGEABLE
BEARING,BALL,ANNULAR
645021146
3110-01-236-7444INTERCHANGEABLE
BEARING,BALL,ANNULAR
01515
6505-01-240-3146INTERCHANGEABLE
NITROGLYCERIN INJECTION
6119
3110-01-293-2906INTERCHANGEABLE
BEARING,BALL,ANNULAR
16010
5998-01-299-3742INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
16-010

Frequently Asked Questions

What is NSN 6210-00-504-0237?

NSN 6210-00-504-0237 is a Light,indicator, manufactured by Dialight Corporation, classified under FSC 6210 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6210-00-504-0237?

NSN 6210-00-504-0237 has 4 cross-referenced part numbers: 521310-991 (Dialight Corporation), 8527032 (Us Army Aviation and Missile Command), 16010 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 19019 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc).

What NSN replaces 6210-00-504-0237?

There are 12 known substitutes for 6210-00-504-0237: 6350-00-071-2767, 5935-00-153-4365, 4720-00-278-1107 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 521310-991?

Key specifications for 521310-991: Transmitted Light Color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A; Material: COPPER ALLOY BODY; Lens Color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL; Furnished Items and Quantity: 1 HEXAGON NUT AND 1 LOCK WASHER. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6210-00-504-0237 still in active supply?

NSN 6210-00-504-0237 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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