PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9MT21P2Indicator,liquid Quantity

Mack Trucks Inc Parts Opn · NSN 6680-00-514-5477 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-514-5477 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-514-5477. Primary manufacturer part number: 9MT21P2.
Features
  • Indicator,liquid Quantity — FSC 6680
  • 33 verified cross-references
  • Primary manufacturer: Mack Trucks Inc Parts Opn
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,liquid Quantity, cataloged under National Stock Number 6680-00-514-5477, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mack Trucks Inc Parts Opn. This item has 33 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameIndicator,liquid Quantity
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersKaitlin Corp (CAGE 63734); Corbitt Co Inc (CAGE 72260); Diamond Reo Truck Co (CAGE 56442); Ford Motor Company (CAGE 57526); Mack Trucks Inc Parts Opn (CAGE 76040)
Technical Specifications
ParameterValue
NSN6680-00-514-5477
Primary Part Number9MT21P2
Item NameIndicator,liquid Quantity
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerMack Trucks Inc Parts Opn
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6620-00-073-6265 INTERCHANGEABLE
Gage,fuel,pressure
4730-00-088-88051380-1-2 INTERCHANGEABLE
Elbow,pipe
Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
3110-00-100-6212 INTERCHANGEABLE
Ball,bearing
5999-00-240-4345SCD17108-5 INTERCHANGEABLE
Contact,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
8455-00-246-3568 INTERCHANGEABLE
Insignia,shoulder Sleeve
5935-00-280-22667730199P1 INTERCHANGEABLE
Connector Body,receptacle,electr
General Electric Company
3110-00-293-9588058-4 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Rms - Mitchel Field
6680-00-581-8656300B INTERCHANGEABLE
Indicator,liquid Quantity
Stewart-Warner Corporation
6150-00-591-10985011-1-2 INTERCHANGEABLE
Bus,conductor
Seastrom Manufacturing Co Inc
5950-00-826-7735 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
441023 Kaitlin Corp (USA)
441002 Kaitlin Corp (USA)
441002 Corbitt Co Inc (USA)
N07N1 Diamond Reo Truck Co (USA)
441023 Corbitt Co Inc (USA)
G541-0287876 CAGE 00000
GPW9280 Ford Motor Company (USA)
9MT21P2 PRIMARY Mack Trucks Inc Parts Opn (USA)
23F441023 PRIMARY Fwd Seagrave Holdings Lp (USA)
16UKS3775 PRIMARY Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
A8184 General Motors Llc Dba General Motors Llc (USA)
NG10723D Prestolite Electric Inc (USA)
G116-0400771 CAGE 00000
500039 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
A8184 PRIMARY Am General Llc (USA)
A8184 General Motors Corp (USA)
441002 PRIMARY Kenworth Truck Co a Div of Paccar Inc (USA)
GPW9280 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
9MT21P1 PRIMARY Mack Trucks Inc Parts Opn (USA)
388486 White Motor Corp (USA)
Related Parts
6620-00-073-6265INTERCHANGEABLE
GAGE,FUEL,PRESSURE
4730-00-088-8805INTERCHANGEABLE
ELBOW,PIPE
1380-1-2
3110-00-100-6212INTERCHANGEABLE
BALL,BEARING
5999-00-240-4345INTERCHANGEABLE
CONTACT,ELECTRICAL
SCD17108-5
8455-00-246-3568INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
5935-00-280-2266INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
7730199P1
3110-00-293-9588INTERCHANGEABLE
BEARING,BALL,ANNULAR
058-4
6680-00-581-8656INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
300B
6150-00-591-1098INTERCHANGEABLE
BUS,CONDUCTOR
5011-1-2
5950-00-826-7735INTERCHANGEABLE
COIL,RADIO FREQUENCY
6680-00-858-0488INTERCHANGEABLE
ROD,SIGHT GAGE
5962-01-087-6739INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
AM2847PC

Frequently Asked Questions

What is NSN 6680-00-514-5477?

NSN 6680-00-514-5477 is a Indicator,liquid Quantity, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-514-5477?

NSN 6680-00-514-5477 has 33 cross-referenced part numbers: 441023 (Kaitlin Corp), 441002 (Kaitlin Corp), 441002 (Corbitt Co Inc), N07N1 (Diamond Reo Truck Co), 441023 (Corbitt Co Inc) and 28 more.

What NSN replaces 6680-00-514-5477?

There are 12 known substitutes for 6680-00-514-5477: 6620-00-073-6265, 4730-00-088-8805, 3110-00-100-6212 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 6680-00-514-5477 still in active supply?

NSN 6680-00-514-5477 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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