PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ISO 418Sodium Sulfite,anhydrous,photogr

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 6750-00-664-2100 · FSC 6750 · No Item Name Available
Verified by PartsTable
NSN 6750-00-664-2100 — this item is cataloged by the U.S. Government under National Stock Number 6750-00-664-2100. Primary manufacturer part number: ISO 418.
Features
  • Sodium Sulfite,anhydrous,photogr — FSC 6750
  • Composition and Percentage: 97.0 MINIMUM BY WEIGHT SODIUM SULFITE
  • Impurities Limitation in Percent: ALKALINITY0.15,INSOLUBLE MATTER0.5,LEAD0.002
  • Physical Form: POWDER
  • Quantity Within Each Unit Package: 25.000 POUNDS LBS
  • 4 verified cross-references
  • Primary manufacturer: American National Standards Institute Incorporated Dba American National Standards Institute
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sodium Sulfite,anhydrous,photogr, cataloged under National Stock Number 6750-00-664-2100, is classified within Federal Supply Class 6750 (No Item Name Available) of the Photographic Equipment group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6750-00-664-2100
Primary Part NumberISO 418
Item NameSodium Sulfite,anhydrous,photogr
FSC / FSG6750 / 67 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Composition and Percentage97.0 MINIMUM BY WEIGHT SODIUM SULFITE
Impurities Limitation in PercentALKALINITY0.15,INSOLUBLE MATTER0.5,LEAD0.002
Physical FormPOWDER
Quantity Within Each Unit Package25.000 POUNDS LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6750-00-053-8364 INTERCHANGEABLE
Formaldehyde Solution,photograph
6750-00-141-6180 INTERCHANGEABLE
Methylaminophenol Sulfate,photog
6750-00-174-5455 INTERCHANGEABLE
Potassium Ferricyanide,photograp
6750-00-241-8425 INTERCHANGEABLE
Sodium Carbonate,monohydrate,pho
6750-00-264-5866 INTERCHANGEABLE
Sodium Carbonate,monohydrate,pho
6750-00-274-6725 INTERCHANGEABLE
Ammonium Thiosulfate,photographi
6750-00-274-6731 INTERCHANGEABLE
Potassium Bromide,photographic
4930-00-432-9785 INTERCHANGEABLE
Riser,flanged
6750-00-664-8269 INTERCHANGEABLE
Hydroquinone,photographic
6750-01-059-0434 INTERCHANGEABLE
Ammonium Hydroxide,photographic
Cross-Reference Index
Part NumberManufacturer
PH4-275DRUM25LBS American National Standards Institute Incorporated Dba American National Standards Institute (USA)
SODIUM SULFITE, ANHYDROUS Akzo Nobel Chemicals Inc Dba Chemical Division/akzo Nv (USA)
ISO 418 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
O-C-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
6750-00-053-8364INTERCHANGEABLE
FORMALDEHYDE SOLUTION,PHOTOGRAPH
6750-00-141-6180INTERCHANGEABLE
METHYLAMINOPHENOL SULFATE,PHOTOG
6750-00-174-5455INTERCHANGEABLE
POTASSIUM FERRICYANIDE,PHOTOGRAP
6750-00-241-8425INTERCHANGEABLE
SODIUM CARBONATE,MONOHYDRATE,PHO
6750-00-264-5866INTERCHANGEABLE
SODIUM CARBONATE,MONOHYDRATE,PHO
6750-00-274-6725INTERCHANGEABLE
AMMONIUM THIOSULFATE,PHOTOGRAPHI
6750-00-274-6731INTERCHANGEABLE
POTASSIUM BROMIDE,PHOTOGRAPHIC
4930-00-432-9785INTERCHANGEABLE
RISER,FLANGED
6750-00-664-8269INTERCHANGEABLE
HYDROQUINONE,PHOTOGRAPHIC
6750-01-059-0434INTERCHANGEABLE
AMMONIUM HYDROXIDE,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 6750-00-664-2100?

NSN 6750-00-664-2100 is a Sodium Sulfite,anhydrous,photogr, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 6750 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6750-00-664-2100?

NSN 6750-00-664-2100 has 4 cross-referenced part numbers: PH4-275DRUM25LBS (American National Standards Institute Incorporated Dba American National Standards Institute), SODIUM SULFITE, ANHYDROUS (Akzo Nobel Chemicals Inc Dba Chemical Division/akzo Nv), ISO 418 (American National Standards Institute Incorporated Dba American National Standards Institute), O-C-275 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 6750-00-664-2100?

There are 10 known substitutes for 6750-00-664-2100: 6750-00-053-8364, 6750-00-141-6180, 6750-00-174-5455 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ISO 418?

Key specifications for ISO 418: Composition and Percentage: 97.0 MINIMUM BY WEIGHT SODIUM SULFITE; Impurities Limitation in Percent: ALKALINITY0.15,INSOLUBLE MATTER0.5,LEAD0.002; Physical Form: POWDER; Quantity Within Each Unit Package: 25.000 POUNDS LBS. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6750-00-664-2100 still in active supply?

NSN 6750-00-664-2100 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.
PartsTable Design LLC · partstable.com