PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33800Assay,thyroxine

Beckman Coulter, Inc · NSN 6550-01-559-7503 · FSC 6550 · No Item Name Available
Verified by PartsTable
NSN 6550-01-559-7503 — this item is cataloged by the U.S. Government under National Stock Number 6550-01-559-7503. Primary manufacturer part number: 33800.
Features
  • Assay,thyroxine — FSC 6550
  • 1 verified cross-reference
  • Primary manufacturer: Beckman Coulter, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Assay,thyroxine, cataloged under National Stock Number 6550-01-559-7503, is classified within Federal Supply Class 6550 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Beckman Coulter, Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6550-01-559-7503
Primary Part Number33800
Item NameAssay,thyroxine
FSC / FSG6550 / 65 — No Item Name Available
ManufacturerBeckman Coulter, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-627-65762S1218 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5815-00-915-2877 INTERCHANGEABLE
Spring
6515-01-116-071733800 INTERCHANGEABLE
Catheter,tracheal
Cardinal Health 200, Llc
5315-01-219-248533800 INTERCHANGEABLE
Pin,grooved,headed
Ridge Tool Company
6210-01-226-6440SRP90LD1MD-C1 INTERCHANGEABLE
Fixture,lighting
Abb Installation Products Inc
6520-01-371-709133800 INTERCHANGEABLE
Remover,dental Crown
Almore International Inc
5210-01-428-547133-430 INTERCHANGEABLE
Tape,measuring
The Stanley Works Dba Stanley Proto
5310-01-556-665512759-00585 INTERCHANGEABLE
Washer,flat
Fastenal Company Dba Fastenal Co
5310-01-563-214633800 INTERCHANGEABLE
Washer,flat
Fastenal Company
Cross-Reference Index
Part NumberManufacturer
33800 PRIMARY Beckman Coulter, Inc (USA)
Related Parts
5330-00-627-6576INTERCHANGEABLE
GASKET
2S1218
5815-00-915-2877INTERCHANGEABLE
SPRING
6515-01-116-0717INTERCHANGEABLE
CATHETER,TRACHEAL
33800
5315-01-219-2485INTERCHANGEABLE
PIN,GROOVED,HEADED
33800
6210-01-226-6440INTERCHANGEABLE
FIXTURE,LIGHTING
SRP90LD1MD-C1
6520-01-371-7091INTERCHANGEABLE
REMOVER,DENTAL CROWN
33800
5210-01-428-5471INTERCHANGEABLE
TAPE,MEASURING
33-430
5310-01-556-6655INTERCHANGEABLE
WASHER,FLAT
12759-00585
5310-01-563-2146INTERCHANGEABLE
WASHER,FLAT
33800

Frequently Asked Questions

What is NSN 6550-01-559-7503?

NSN 6550-01-559-7503 is a Assay,thyroxine, manufactured by Beckman Coulter, Inc, classified under FSC 6550 (No Item Name Available). Status: active.

What are the part numbers for NSN 6550-01-559-7503?

NSN 6550-01-559-7503 has 1 cross-referenced part number: 33800 (Beckman Coulter, Inc).

What NSN replaces 6550-01-559-7503?

There are 9 known substitutes for 6550-01-559-7503: 5330-00-627-6576, 5815-00-915-2877, 6515-01-116-0717 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33800?

Key specifications for 33800: Special Features: PARAMAGNETIC PARTICLE; CHEMILUMINESCENT IMMUNOASSAY; USES ACCESS IMMUNOASSAY SYSTEMS; DETERMINES TOTAL THYROXINE (T4) LEVELS IN HUMAN SERUM OR PLASMA; COMETITIVE BINDING. 1 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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