PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R21227Kovacs Reagent

Remel Inc. · NSN 6550-01-359-5097 · FSC 6550 · No Item Name Available
Verified by PartsTable
NSN 6550-01-359-5097 — this item is cataloged by the U.S. Government under National Stock Number 6550-01-359-5097. Primary manufacturer part number: R21227.
Features
  • Kovacs Reagent — FSC 6550
  • Supplementary Features: MEDSEP ITEM FOR DOD, REMEL LABS
  • Physical Form: LIQUID
  • Primary Container Content Quantity: 50.000 MILLILITERS
  • Primary Container Type: BOTTLE
  • 3 verified cross-references
  • Primary manufacturer: Remel Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Kovacs Reagent, cataloged under National Stock Number 6550-01-359-5097, 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 Remel Inc.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: BT.

Technical Specifications
ParameterValue
NSN6550-01-359-5097
Primary Part NumberR21227
Item NameKovacs Reagent
FSC / FSG6550 / 65 — No Item Name Available
ManufacturerRemel Inc.
StatusACTIVE
Supplementary FeaturesMEDSEP ITEM FOR DOD, REMEL LABS
Physical FormLIQUID
Primary Container Content Quantity50.000 MILLILITERS
Primary Container TypeBOTTLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueBT
Verified Substitutes 9
3120-00-371-638921-227 INTERCHANGEABLE
Bearing,sleeve
Dresser Industries Inc Leroi Div
5940-00-502-1455SCB18902 INTERCHANGEABLE
Terminal Board
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-00-905-816645-5250S-464-1 INTERCHANGEABLE
Connector Body,plug,electrical
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5935-00-905-816945-5250S-464-3 INTERCHANGEABLE
Connector Body,plug,electrical
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5935-00-905-8173E622379-4 INTERCHANGEABLE
Connector Body,plug,electrical
Raytheon Co
4320-01-219-095821227 INTERCHANGEABLE
Hanger and Piston Assembly
Parker Hannifin Corporation Div Hydraulic Systems Division
5310-01-240-061521227 INTERCHANGEABLE
Nut,special
Dresser, Llc
4820-01-273-055121227 INTERCHANGEABLE
Parts Kit,valve
Hydro Engineering Innovation, Llc
5985-01-462-408021227 INTERCHANGEABLE
Coupler,rotary,radio Frequency
Frontgrade Technologies Inc.
Cross-Reference Index
Part NumberManufacturer
R21227 PRIMARY Remel Inc. (USA)
F92E030 Air Force Medical Logistics Office (USA)
21-227 Remel Inc. (USA)
Related Parts
3120-00-371-6389INTERCHANGEABLE
BEARING,SLEEVE
21-227
5940-00-502-1455INTERCHANGEABLE
TERMINAL BOARD
SCB18902
5935-00-905-8166INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
45-5250S-464-1
5935-00-905-8169INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
45-5250S-464-3
5935-00-905-8173INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
E622379-4
4320-01-219-0958INTERCHANGEABLE
HANGER AND PISTON ASSEMBLY
21227
5310-01-240-0615INTERCHANGEABLE
NUT,SPECIAL
21227
4820-01-273-0551INTERCHANGEABLE
PARTS KIT,VALVE
21227
5985-01-462-4080INTERCHANGEABLE
COUPLER,ROTARY,RADIO FREQUENCY
21227

Frequently Asked Questions

What is NSN 6550-01-359-5097?

NSN 6550-01-359-5097 is a Kovacs Reagent, manufactured by Remel Inc., classified under FSC 6550 (No Item Name Available). Status: active.

What are the part numbers for NSN 6550-01-359-5097?

NSN 6550-01-359-5097 has 3 cross-referenced part numbers: R21227 (Remel Inc.), F92E030 (Air Force Medical Logistics Office), 21-227 (Remel Inc.).

What NSN replaces 6550-01-359-5097?

There are 9 known substitutes for 6550-01-359-5097: 3120-00-371-6389, 5940-00-502-1455, 5935-00-905-8166 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R21227?

Key specifications for R21227: Part Name Assigned by Controlling Agency: KOVACS REAGENT LIQUID INDOLE REAGENT 50ML; Supplementary Features: MEDSEP ITEM FOR DOD, REMEL LABS; Special Features: INDOLE REAGENT; Physical Form: LIQUID. 6 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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