PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6025D37Hydrometer,graduated Scale

Arthur H. Thomas Company · NSN 6630-00-244-9981 · FSC 6630 · No Item Name Available
Verified by PartsTable
NSN 6630-00-244-9981 — this item is cataloged by the U.S. Government under National Stock Number 6630-00-244-9981. Primary manufacturer part number: 6025D37.
Features
  • Hydrometer,graduated Scale — FSC 6630
  • Scale Quantity: 1
  • Conversion Chart: NOT INCLUDED
  • Thermometer: NOT INCLUDED
  • Scale Name: API
  • Correction Scale: NOT INCLUDED
  • Scale Smallest Increment: 0.1 DEGREES
  • Specimen Receptacle Holder: NOT INCLUDED
Applications
  • Applications requiring Glass Plummet construction
General Description

The Hydrometer,graduated Scale, cataloged under National Stock Number 6630-00-244-9981, is classified within Federal Supply Class 6630 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Arthur H. Thomas Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN6630-00-244-9981
Primary Part Number6025D37
Item NameHydrometer,graduated Scale
FSC / FSG6630 / 66 — No Item Name Available
ManufacturerArthur H. Thomas Company
StatusCANCELLED
Scale Quantity1
Conversion ChartNOT INCLUDED
ThermometerNOT INCLUDED
Scale NameAPI
Correction ScaleNOT INCLUDED
Scale Smallest Increment0.1 DEGREES
Specimen Receptacle HolderNOT INCLUDED
Scale Calibration Temp60.0 FAHRENHEIT DEGF
Overall Diameter23.0 MILLIMETERS MINIMUM AND 27.0 MILLIMETERS MAXIMUM MM
Scale Range+79.0 TO 91.0 DEGREES
Scale Accuracy Rating0.100 DEGREES
MaterialGLASS PLUMMET
MaterialGLASS STEM
Nondefinitive Spec/std DataA CLASS AND 9H-62 NUMBER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6630-00-244-998011-603F INTERCHANGEABLE
Hydrometer,graduated Scale
Fisher Scientific Company L.l.c.
6630-00-244-99826034H35 INTERCHANGEABLE
Hydrometer,graduated Scale
Arthur H. Thomas Company
6630-00-244-9983 INTERCHANGEABLE
Hydrometer,graduated Scale
6630-00-244-99846025D19 INTERCHANGEABLE
Hydrometer,graduated Scale
Arthur H. Thomas Company
6630-00-244-99856025D23 INTERCHANGEABLE
Hydrometer,graduated Scale
Arthur H. Thomas Company
6630-00-244-99866025D11 INTERCHANGEABLE
Hydrometer,graduated Scale
Arthur H. Thomas Company
6630-00-244-99876025D15 INTERCHANGEABLE
Hydrometer,graduated Scale
Arthur H. Thomas Company
6630-00-252-2252E100-34H INTERCHANGEABLE
Hydrometer,graduated Scale
American Society for Testing and Materials Dba Astm International
6630-00-252-2254E10032H INTERCHANGEABLE
Hydrometer,graduated Scale
American Society for Testing and Materials Dba Astm International
6630-00-252-2255E100-33H INTERCHANGEABLE
Hydrometer,graduated Scale
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
6036A17 Arthur H. Thomas Company (USA)
E100-629H62 American Society for Testing and Materials Dba Astm International (USA)
11-603G Fisher Scientific Company L.l.c. (USA)
MILH36266 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
145-730 Curtin Matheson Scientific Inc (USA)
6025D37 PRIMARY Arthur H. Thomas Company (USA)
Related Parts
6630-00-244-9980INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
11-603F
6630-00-244-9982INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6034H35
6630-00-244-9983INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6630-00-244-9984INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6025D19
6630-00-244-9985INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6025D23
6630-00-244-9986INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6025D11
6630-00-244-9987INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
6025D15
6630-00-252-2252INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
E100-34H
6630-00-252-2254INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
E10032H
6630-00-252-2255INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
E100-33H
6630-00-252-2256INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
E100-30H
6630-00-252-2258INTERCHANGEABLE
HYDROMETER,GRADUATED SCALE
ASTM 26H-62

Frequently Asked Questions

What is NSN 6630-00-244-9981?

NSN 6630-00-244-9981 is a Hydrometer,graduated Scale, manufactured by Arthur H. Thomas Company, classified under FSC 6630 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6630-00-244-9981?

NSN 6630-00-244-9981 has 6 cross-referenced part numbers: 6036A17 (Arthur H. Thomas Company), E100-629H62 (American Society for Testing and Materials Dba Astm International), 11-603G (Fisher Scientific Company L.l.c.), MILH36266 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 145-730 (Curtin Matheson Scientific Inc) and 1 more.

What NSN replaces 6630-00-244-9981?

There are 12 known substitutes for 6630-00-244-9981: 6630-00-244-9980, 6630-00-244-9982, 6630-00-244-9983 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6025D37?

Key specifications for 6025D37: Scale Quantity: 1; Overall Length: 325.0 MILLIMETERS MINIMUM AND 335.0 MILLIMETERS MAXIMUM MM; Conversion Chart: NOT INCLUDED; Thermometer: NOT INCLUDED. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6630-00-244-9981 still in active supply?

NSN 6630-00-244-9981 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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