PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CAUSTICK SODA,ANHYDSodium Orthosilicate

Continental Chemical Corp · NSN 6810-00-264-6523 · FSC 6810 · No Item Name Available
Verified by PartsTable
NSN 6810-00-264-6523 — this item is cataloged by the U.S. Government under National Stock Number 6810-00-264-6523. Primary manufacturer part number: CAUSTICK SODA,ANHYD.
Features
  • Sodium Orthosilicate — FSC 6810
  • Composition and Percentage: 60.0 MINIMUM BY WEIGHT SODIUM OXIDE AND 27.0 MINIMUM BY WEIGHT SILICON DIOXIDE
  • Special Handling Feature: POISONOUS
  • Sieve Particle Size Gradation Percentage: 1.0 MAXIMUM RETAINED 2.38 MILLIMETER AND 5.0 MAXIMUM PASSED 177 MICRONS MM
  • Quantity Within Each Unit Package: 100.000 POUNDS LBS
  • Physical Form: FLAKE OR GRANULAR
  • Medical Designation and Grade: TECHNICAL
  • 6 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sodium Orthosilicate, cataloged under National Stock Number 6810-00-264-6523, is classified within Federal Supply Class 6810 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Continental Chemical Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN6810-00-264-6523
Primary Part NumberCAUSTICK SODA,ANHYD
Item NameSodium Orthosilicate
FSC / FSG6810 / 68 — No Item Name Available
ManufacturerContinental Chemical Corp
StatusCANCELLED
Composition and Percentage60.0 MINIMUM BY WEIGHT SODIUM OXIDE AND 27.0 MINIMUM BY WEIGHT SILICON DIOXIDE
Special Handling FeaturePOISONOUS
Sieve Particle Size Gradation Percentage1.0 MAXIMUM RETAINED 2.38 MILLIMETER AND 5.0 MAXIMUM PASSED 177 MICRONS MM
Quantity Within Each Unit Package100.000 POUNDS LBS
Physical FormFLAKE OR GRANULAR
Medical Designation and GradeTECHNICAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4510-00-139-4358P6000-C-SD-CP INTERCHANGEABLE
Flush Valve,stop
Zurn Industries Inc
5935-00-232-37869977 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cinch Connectivity Solutions Inc.
6810-00-270-8177SOD-HYDX INTERCHANGEABLE
Sodium Hydroxide
Rite-Kem, Inc. Dba Rite-Kem Inc
5935-00-361-86961817473 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Northrop Grumman Systems Corporation
5955-00-499-7323712732-15 INTERCHANGEABLE
Crystal Unit,quartz
Raytheon Company Div Rmd Strategic
4820-01-248-2380N09977 INTERCHANGEABLE
Plunger,pilot Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
3439-01-293-7758 INTERCHANGEABLE
Tip,electric Soldering Iron
Cross-Reference Index
Part NumberManufacturer
CAUSTICK SODA,ANHYD Continental Chemical Corp (USA)
9977 Last Group Enterprises Inc. (USA)
SODIUM ORTHO SIL 100 LB DR Cp Industries Llc (USA)
SODIUM ORTHOSILICATE/TECHNICAL Gurtler Chemicals, Inc Dba Gurtler Chemicals Inc (USA)
P-S-651 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-1498 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
4510-00-139-4358INTERCHANGEABLE
FLUSH VALVE,STOP
P6000-C-SD-CP
5935-00-232-3786INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
9977
6810-00-270-8177INTERCHANGEABLE
SODIUM HYDROXIDE
SOD-HYDX
5935-00-361-8696INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1817473
5955-00-499-7323INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
712732-15
4820-01-248-2380INTERCHANGEABLE
PLUNGER,PILOT VALVE
N09977
3439-01-293-7758INTERCHANGEABLE
TIP,ELECTRIC SOLDERING IRON

Frequently Asked Questions

What is NSN 6810-00-264-6523?

NSN 6810-00-264-6523 is a Sodium Orthosilicate, manufactured by Continental Chemical Corp, classified under FSC 6810 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6810-00-264-6523?

NSN 6810-00-264-6523 has 6 cross-referenced part numbers: CAUSTICK SODA,ANHYD (Continental Chemical Corp), 9977 (Last Group Enterprises Inc.), SODIUM ORTHO SIL 100 LB DR (Cp Industries Llc), SODIUM ORTHOSILICATE/TECHNICAL (Gurtler Chemicals, Inc Dba Gurtler Chemicals Inc), P-S-651 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 6810-00-264-6523?

There are 7 known substitutes for 6810-00-264-6523: 4510-00-139-4358, 5935-00-232-3786, 6810-00-270-8177 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CAUSTICK SODA,ANHYD?

Key specifications for CAUSTICK SODA,ANHYD: Composition and Percentage: 60.0 MINIMUM BY WEIGHT SODIUM OXIDE AND 27.0 MINIMUM BY WEIGHT SILICON DIOXIDE; Special Handling Feature: POISONOUS; Sieve Particle Size Gradation Percentage: 1.0 MAXIMUM RETAINED 2.38 MILLIMETER AND 5.0 MAXIMUM PASSED 177 MICRONS MM; Quantity Within Each Unit Package: 100.000 POUNDS LBS. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6810-00-264-6523 still in active supply?

NSN 6810-00-264-6523 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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