PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R21522Kovacs Reagent

Remel Inc. · NSN 6550-01-352-3875 · FSC 6550 · No Item Name Available
Verified by PartsTable
NSN 6550-01-352-3875 — this item is cataloged by the U.S. Government under National Stock Number 6550-01-352-3875. Primary manufacturer part number: R21522.
Features
  • Kovacs Reagent — FSC 6550
  • Primary Container Content Quantity: 0.750 MILLILITERS
  • Supplementary Features: MEDSEP ITEM FOR DOD, REMEL LABS
  • Physical Form: LIQUID
  • Total Primary Container Quantity: 50
  • Primary Container Type: AMPUL, CRUSHABLE
  • 5 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 6550-01-352-3875, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: PG.

Technical Specifications
ParameterValue
NSN6550-01-352-3875
Primary Part NumberR21522
Item NameKovacs Reagent
FSC / FSG6550 / 65 — No Item Name Available
ManufacturerRemel Inc.
StatusACTIVE
Primary Container Content Quantity0.750 MILLILITERS
Supplementary FeaturesMEDSEP ITEM FOR DOD, REMEL LABS
Physical FormLIQUID
Total Primary Container Quantity50
Primary Container TypeAMPUL, CRUSHABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 9
4820-00-926-95942100A INTERCHANGEABLE
Valve,foot
Industrial Technologies and Services Llc
5930-00-967-340521522 INTERCHANGEABLE
Switch,thermostatic
Sensata Technologies, Inc. Div Sensata Attleboro
5210-01-004-27122-1522 INTERCHANGEABLE
Gage,fastener Protrusion
Hi-Shear Corporation
6610-01-115-914021522 INTERCHANGEABLE
Tube Shield,short
Aerosonic Llc
5310-01-232-127121522 INTERCHANGEABLE
Washer
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6550-01-379-9246R21508 INTERCHANGEABLE
Desoxycholate Test Reagent
Remel Inc.
9390-01-468-770218-61004 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Sierra Nevada Company, Llc
5310-01-524-8763 INTERCHANGEABLE
Nut,plain,barrel
6632-01-540-159721522 INTERCHANGEABLE
Filter Kit,blood Gas Analyzer
Nova Biomedical Corp
Cross-Reference Index
Part NumberManufacturer
R21522 PRIMARY Remel Inc. (USA)
BACTIDROP Remel Inc. (USA)
F91L318 Air Force Medical Logistics Office (USA)
BACTIDROP REAGENT Remel Inc. (USA)
21-522 Remel Inc. (USA)
Related Parts
4820-00-926-9594INTERCHANGEABLE
VALVE,FOOT
2100A
5930-00-967-3405INTERCHANGEABLE
SWITCH,THERMOSTATIC
21522
5210-01-004-2712INTERCHANGEABLE
GAGE,FASTENER PROTRUSION
2-1522
6610-01-115-9140INTERCHANGEABLE
TUBE SHIELD,SHORT
21522
5310-01-232-1271INTERCHANGEABLE
WASHER
21522
6550-01-379-9246INTERCHANGEABLE
DESOXYCHOLATE TEST REAGENT
R21508
9390-01-468-7702INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
18-61004
5310-01-524-8763INTERCHANGEABLE
NUT,PLAIN,BARREL
6632-01-540-1597INTERCHANGEABLE
FILTER KIT,BLOOD GAS ANALYZER
21522

Frequently Asked Questions

What is NSN 6550-01-352-3875?

NSN 6550-01-352-3875 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 6550-01-352-3875?

NSN 6550-01-352-3875 has 5 cross-referenced part numbers: R21522 (Remel Inc.), BACTIDROP (Remel Inc.), F91L318 (Air Force Medical Logistics Office), BACTIDROP REAGENT (Remel Inc.), 21-522 (Remel Inc.).

What NSN replaces 6550-01-352-3875?

There are 9 known substitutes for 6550-01-352-3875: 4820-00-926-9594, 5930-00-967-3405, 5210-01-004-2712 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R21522?

Key specifications for R21522: Part Name Assigned by Controlling Agency: KOVACS REAGENT 0.75ML AMPUL 50 PER PACKAGE; Primary Container Content Quantity: 0.750 MILLILITERS; Supplementary Features: MEDSEP ITEM FOR DOD, REMEL LABS; Physical Form: LIQUID. 7 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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