PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P243Potassium Hydrogen Phthalate,aci

Fisher Scientific Company L.l.c. · NSN 6810-00-264-6605 · FSC 6810 · No Item Name Available
Verified by PartsTable
NSN 6810-00-264-6605 — this item is cataloged by the U.S. Government under National Stock Number 6810-00-264-6605. Primary manufacturer part number: P243.
Features
  • Potassium Hydrogen Phthalate,aci — FSC 6810
  • Quantity Within Each Unit Package: 500.0 GRAMS G
  • Physical Form: CRYSTAL
  • Medical Designation and Grade: AMERICAN CHEMICAL SOCIETY
  • 6 verified cross-references
  • Primary manufacturer: Fisher Scientific Company L.l.c.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Potassium Hydrogen Phthalate,aci, cataloged under National Stock Number 6810-00-264-6605, is classified within Federal Supply Class 6810 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Fisher Scientific Company L.l.c.. Government technical data includes 3 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: Active.

Technical Specifications
ParameterValue
NSN6810-00-264-6605
Primary Part NumberP243
Item NamePotassium Hydrogen Phthalate,aci
FSC / FSG6810 / 68 — No Item Name Available
ManufacturerFisher Scientific Company L.l.c.
StatusACTIVE
Quantity Within Each Unit Package500.0 GRAMS G
Physical FormCRYSTAL
Medical Designation and GradeAMERICAN CHEMICAL SOCIETY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5920-00-231-8950 INTERCHANGEABLE
Fuseholder,block
5935-00-235-81052958 INTERCHANGEABLE
Connector,plug,electrical
Emporium Specialties Co Inc
3940-00-238-59362958 INTERCHANGEABLE
Adapter,hoisting
Allison Transmission Inc Dba Allison Transmission, Inc
6810-00-275-8134 INTERCHANGEABLE
Potassium Hydrogen Phthalate,aci
2530-00-391-3967FD14493 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5950-00-473-184124568 INTERCHANGEABLE
Transformer,power
Gte Products Corp Sylvania Miniature Lighting Div
5365-00-491-0929 INTERCHANGEABLE
Bushing,sleeve
5999-00-500-946629-58 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
3020-00-517-13632958 INTERCHANGEABLE
Gear,spur
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
3040-00-594-3023 INTERCHANGEABLE
Shaft,straight
Cross-Reference Index
Part NumberManufacturer
P243 Fisher Scientific Company L.l.c. (USA)
P243-500 Fisher Scientific Company L.l.c. (USA)
A-A-59282 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
2083 Honeywell International Inc Div Environmental Systems & Services (USA)
2958 Avantor Performance Materials, Inc. (USA)
O-C-265 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5920-00-231-8950INTERCHANGEABLE
FUSEHOLDER,BLOCK
5935-00-235-8105INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2958
3940-00-238-5936INTERCHANGEABLE
ADAPTER,HOISTING
2958
6810-00-275-8134INTERCHANGEABLE
POTASSIUM HYDROGEN PHTHALATE,ACI
2530-00-391-3967INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FD14493
5950-00-473-1841INTERCHANGEABLE
TRANSFORMER,POWER
24568
5365-00-491-0929INTERCHANGEABLE
BUSHING,SLEEVE
5999-00-500-9466INTERCHANGEABLE
CONTACT,ELECTRICAL
29-58
3020-00-517-1363INTERCHANGEABLE
GEAR,SPUR
2958
3040-00-594-3023INTERCHANGEABLE
SHAFT,STRAIGHT
5920-01-033-1589INTERCHANGEABLE
FUSEHOLDER,BLOCK
2958
5910-01-254-8952INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC

Frequently Asked Questions

What is NSN 6810-00-264-6605?

NSN 6810-00-264-6605 is a Potassium Hydrogen Phthalate,aci, manufactured by Fisher Scientific Company L.l.c., classified under FSC 6810 (No Item Name Available). Status: active.

What are the part numbers for NSN 6810-00-264-6605?

NSN 6810-00-264-6605 has 6 cross-referenced part numbers: P243 (Fisher Scientific Company L.l.c.), P243-500 (Fisher Scientific Company L.l.c.), A-A-59282 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 2083 (Honeywell International Inc Div Environmental Systems & Services), 2958 (Avantor Performance Materials, Inc.) and 1 more.

What NSN replaces 6810-00-264-6605?

There are 12 known substitutes for 6810-00-264-6605: 5920-00-231-8950, 5935-00-235-8105, 3940-00-238-5936 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P243?

Key specifications for P243: Quantity Within Each Unit Package: 500.0 GRAMS G; Physical Form: CRYSTAL; Medical Designation and Grade: AMERICAN CHEMICAL SOCIETY; Special Features: COMPOSITION AND PERCENTAGE: 99.95 MINIMUM BY WEIGHT POTASSIUM HYDROGEN PHTHALATE. 4 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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