PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2591Test Kit,bilirubin Determination

Siemens Medical Solutions Diagnostics · NSN 6550-01-023-7977 · FSC 6550 · No Item Name Available
Verified by PartsTable
NSN 6550-01-023-7977 — this item is cataloged by the U.S. Government under National Stock Number 6550-01-023-7977. Primary manufacturer part number: 2591.
Features
  • Test Kit,bilirubin Determination — FSC 6550
  • Component Breakdown Within Each Test Kit: 100 ICTOTEST REAGENT TABLETS AND 100 ICTOTEST MATS,KIT;
  • Test Media: URINE
  • Usage Design: DETERMINE BILIRUBIN
  • 5 verified cross-references
  • Primary manufacturer: Siemens Medical Solutions Diagnostics
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Test Kit,bilirubin Determination, cataloged under National Stock Number 6550-01-023-7977, 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 Siemens Medical Solutions Diagnostics. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: BT.

Technical Specifications
ParameterValue
NSN6550-01-023-7977
Primary Part Number2591
Item NameTest Kit,bilirubin Determination
FSC / FSG6550 / 65 — No Item Name Available
ManufacturerSiemens Medical Solutions Diagnostics
StatusACTIVE
Component Breakdown Within Each Test Kit100 ICTOTEST REAGENT TABLETS AND 100 ICTOTEST MATS,KIT;
Test MediaURINE
Usage DesignDETERMINE BILIRUBIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueBT
Verified Substitutes 12
5950-00-068-7943577R593H01 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6220-00-115-5038259-001-GRN INTERCHANGEABLE
Lens,light
Perko Inc
5330-00-433-1475 INTERCHANGEABLE
Gasket
5340-00-690-88912591 INTERCHANGEABLE
Button,plug
Heyco Inc Dba Heyco Products
5961-00-910-6357 INTERCHANGEABLE
Semiconductor Device,diode
3110-01-180-2337 INTERCHANGEABLE
Bearing,ball,annular
4820-01-215-2271259-01 INTERCHANGEABLE
Plunger,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
6240-01-238-4358 INTERCHANGEABLE
Lamp,incandescent
5935-01-342-6659G386460-1 INTERCHANGEABLE
Adapter,connector
Raytheon Company Dba Raytheon Co
5950-01-347-2152300103 INTERCHANGEABLE
Transformer,power
Astronics Test Systems Inc
Cross-Reference Index
Part NumberManufacturer
2591 Bayer Corp Diagnostics Div (USA)
NDC00193-2590-21 Bayer Healthcare Llc Dba Bayer Healthcare-Viterion (USA)
2591 PRIMARY Siemens Medical Solutions Diagnostics (USA)
NDC193-2590-21 Bayer Corp Diagnostics Div (USA)
2591 Bayer Healthcare Llc Dba Bayer Healthcare-Viterion (USA)
Related Parts
5950-00-068-7943INTERCHANGEABLE
TRANSFORMER,POWER
577R593H01
6220-00-115-5038INTERCHANGEABLE
LENS,LIGHT
259-001-GRN
5330-00-433-1475INTERCHANGEABLE
GASKET
5340-00-690-8891INTERCHANGEABLE
BUTTON,PLUG
2591
5961-00-910-6357INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3110-01-180-2337INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-01-215-2271INTERCHANGEABLE
PLUNGER,VALVE
259-01
6240-01-238-4358INTERCHANGEABLE
LAMP,INCANDESCENT
5935-01-342-6659INTERCHANGEABLE
ADAPTER,CONNECTOR
G386460-1
5950-01-347-2152INTERCHANGEABLE
TRANSFORMER,POWER
300103
6750-01-382-0284INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
5340-01-388-0496INTERCHANGEABLE
WHEEL,CASTER

Frequently Asked Questions

What is NSN 6550-01-023-7977?

NSN 6550-01-023-7977 is a Test Kit,bilirubin Determination, manufactured by Siemens Medical Solutions Diagnostics, classified under FSC 6550 (No Item Name Available). Status: active.

What are the part numbers for NSN 6550-01-023-7977?

NSN 6550-01-023-7977 has 5 cross-referenced part numbers: 2591 (Bayer Corp Diagnostics Div), NDC00193-2590-21 (Bayer Healthcare Llc Dba Bayer Healthcare-Viterion), 2591 (Siemens Medical Solutions Diagnostics), NDC193-2590-21 (Bayer Corp Diagnostics Div), 2591 (Bayer Healthcare Llc Dba Bayer Healthcare-Viterion).

What NSN replaces 6550-01-023-7977?

There are 12 known substitutes for 6550-01-023-7977: 5950-00-068-7943, 6220-00-115-5038, 5330-00-433-1475 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2591?

Key specifications for 2591: Part Name Assigned by Controlling Agency: TEST KIT, BILIRUBIN; Component Breakdown Within Each Test Kit: 100 ICTOTEST REAGENT TABLETS AND 100 ICTOTEST MATS,KIT;; Test Media: URINE; Usage Design: DETERMINE BILIRUBIN. 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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