PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D421REVHGage,liquid Quantity,float Type

Hersey Measurement Co Div of Miller Industries Inc · NSN 6680-00-099-5661 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-099-5661 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-099-5661. Primary manufacturer part number: D421REVH.
Features
  • Gage,liquid Quantity,float Type — FSC 6680
  • Scale Calibration: E TO F
  • Scale Type: STATIONARY
  • Mounting Method: FLANGE
  • Float Protective Case: NOT PROVIDED
  • Float Guide Wire: NOT PROVIDED
  • Indicator Type: DIAL
  • Scale Smallest Increment: 0.125 TANK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Gage,liquid Quantity,float Type, cataloged under National Stock Number 6680-00-099-5661, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hersey Measurement Co Div of Miller Industries Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN6680-00-099-5661
Primary Part NumberD421REVH
Item NameGage,liquid Quantity,float Type
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerHersey Measurement Co Div of Miller Industries Inc
StatusACTIVE
Scale CalibrationE TO F
Scale TypeSTATIONARY
Mounting MethodFLANGE
Float Protective CaseNOT PROVIDED
Float Guide WireNOT PROVIDED
Indicator TypeDIAL
Scale Smallest Increment0.125 TANK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-154-4967 INTERCHANGEABLE
Seal,plain Encased
9150-00-261-8295D-421 INTERCHANGEABLE
Grease,plug Valve
Flowserve Us Inc. Dba Flowserve Div Flow Control - Oil and Gas Sector
5340-00-367-0908D42-1 INTERCHANGEABLE
Strap,retaining
Western Sky Industries Inc Dba Electromech Techologies
2920-00-631-5694 INTERCHANGEABLE
Starter,engine,electrical
5998-01-230-80004LC12 INTERCHANGEABLE
Circuit Card Assembly
Dynalec Corporation
Cross-Reference Index
Part NumberManufacturer
D421REVH PRIMARY Hersey Measurement Co Div of Miller Industries Inc (USA)
D421 Hersey Products Inc (USA)
Related Parts
5330-00-154-4967INTERCHANGEABLE
SEAL,PLAIN ENCASED
9150-00-261-8295INTERCHANGEABLE
GREASE,PLUG VALVE
D-421
5340-00-367-0908INTERCHANGEABLE
STRAP,RETAINING
D42-1
2920-00-631-5694INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
5998-01-230-8000INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4LC12

Frequently Asked Questions

What is NSN 6680-00-099-5661?

NSN 6680-00-099-5661 is a Gage,liquid Quantity,float Type, manufactured by Hersey Measurement Co Div of Miller Industries Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-099-5661?

NSN 6680-00-099-5661 has 2 cross-referenced part numbers: D421REVH (Hersey Measurement Co Div of Miller Industries Inc), D421 (Hersey Products Inc).

What NSN replaces 6680-00-099-5661?

There are 5 known substitutes for 6680-00-099-5661: 5330-00-154-4967, 9150-00-261-8295, 5340-00-367-0908 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D421REVH?

Key specifications for D421REVH: Scale Calibration: E TO F; Scale Type: STATIONARY; Mounting Method: FLANGE; Float Protective Case: NOT PROVIDED. 7 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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