PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-33Scale Removing Compound

American Society for Testing and Materials Dba Astm International · NSN 6850-00-949-1397 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-00-949-1397 — this item is cataloged by the U.S. Government under National Stock Number 6850-00-949-1397. Primary manufacturer part number: A-A-33.
Features
  • Scale Removing Compound — FSC 6850
  • Nondefinitive Spec/std Data: II TYPE
  • Major Chemical: PHOSPHORIC ACID
  • Inhibitor: NOT INCLUDED
  • Quantity Within Each Unit Package: 1.0 GALLONS
  • 4 verified cross-references
  • Primary manufacturer: American Society for Testing and Materials Dba Astm International
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Scale Removing Compound, cataloged under National Stock Number 6850-00-949-1397, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is American Society for Testing and Materials Dba Astm International. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6850-00-949-1397
Primary Part NumberA-A-33
Item NameScale Removing Compound
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Nondefinitive Spec/std DataII TYPE
Major ChemicalPHOSPHORIC ACID
InhibitorNOT INCLUDED
Quantity Within Each Unit Package1.0 GALLONS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5120-00-089-3663 INTERCHANGEABLE
Nutdriver Set
6850-00-637-6142DESCALE INTERCHANGEABLE
Scale Removing Compound
Rite-Kem, Inc. Dba Rite-Kem Inc
6130-00-806-6625 INTERCHANGEABLE
Power Supply
6670-01-042-8117 INTERCHANGEABLE
Scale,mail and Parcel Post
5930-01-050-8427 INTERCHANGEABLE
Switch,rotary
6850-01-174-9548 INTERCHANGEABLE
Scale Removing Compound
6130-01-214-1643 INTERCHANGEABLE
Power Supply
Cross-Reference Index
Part NumberManufacturer
A-A-33 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
P-S-120 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-33 PRIMARY American Society for Testing and Materials Dba Astm International (USA)
LIME-A-WAY 4-1 GAL Ecolab Inc (USA)
Related Parts
5120-00-089-3663INTERCHANGEABLE
NUTDRIVER SET
6850-00-637-6142INTERCHANGEABLE
SCALE REMOVING COMPOUND
DESCALE
6130-00-806-6625INTERCHANGEABLE
POWER SUPPLY
6670-01-042-8117INTERCHANGEABLE
SCALE,MAIL AND PARCEL POST
5930-01-050-8427INTERCHANGEABLE
SWITCH,ROTARY
6850-01-174-9548INTERCHANGEABLE
SCALE REMOVING COMPOUND
6130-01-214-1643INTERCHANGEABLE
POWER SUPPLY

Frequently Asked Questions

What is NSN 6850-00-949-1397?

NSN 6850-00-949-1397 is a Scale Removing Compound, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 6850 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6850-00-949-1397?

NSN 6850-00-949-1397 has 4 cross-referenced part numbers: A-A-33 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), P-S-120 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-33 (American Society for Testing and Materials Dba Astm International), LIME-A-WAY 4-1 GAL (Ecolab Inc).

What NSN replaces 6850-00-949-1397?

There are 7 known substitutes for 6850-00-949-1397: 5120-00-089-3663, 6850-00-637-6142, 6130-00-806-6625 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-33?

Key specifications for A-A-33: Nondefinitive Spec/std Data: II TYPE; Major Chemical: PHOSPHORIC ACID; Inhibitor: NOT INCLUDED; Special Features: BLEND OF MILD ACIDS PLUS DETERGENTS; USED FOR REMOVAL OF LIME FILM,IRON STAINS AND SCALE ON MANY WASHABLE SURFACES,AFFECTIVE ON STAINS UNAFFECTED BY ALKALINE DETERGENTS AND FOR SOILS WITH HIGH CALCIUM,MAGNESIUM OR IRON CONTENT; USE ON WARE WASHING MACHINE INTERIORS,STAINLESS STEEL AND ALUMINUM HOSPITAL AND LAB GLASSWARE,TOILET BOWLS AND URINALS,ANIMAL CAGES AND FOOD PROCESSING EQUIPMENT; PACKAGED FOUR 1 GALLON BOTTLES PER BOX. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6850-00-949-1397 still in active supply?

NSN 6850-00-949-1397 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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