PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R21536Acetic Acid and Sulfanic Acid So

Remel Inc. · NSN 6550-01-464-4699 · FSC 6550 · No Item Name Available
Verified by PartsTable
NSN 6550-01-464-4699 — this item is cataloged by the U.S. Government under National Stock Number 6550-01-464-4699. Primary manufacturer part number: R21536.
Features
  • Acetic Acid and Sulfanic Acid So — FSC 6550
  • General Characteristics Item Description: .8%; 0.5 ML-0.75 ML, 50'S;HAZARDOUS
  • 5 verified cross-references
  • Primary manufacturer: Remel Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Acetic Acid and Sulfanic Acid So, cataloged under National Stock Number 6550-01-464-4699, 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 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6550-01-464-4699
Primary Part NumberR21536
Item NameAcetic Acid and Sulfanic Acid So
FSC / FSG6550 / 65 — No Item Name Available
ManufacturerRemel Inc.
StatusACTIVE
General Characteristics Item Description.8%; 0.5 ML-0.75 ML, 50'S;HAZARDOUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 7
2925-00-211-402221536 INTERCHANGEABLE
Head,mounting
Skurka Aerospace Inc
2910-00-424-580018519 INTERCHANGEABLE
Filter Element,fluid
Arvinmeritor Inc
6680-00-869-624421536 INTERCHANGEABLE
Thermostatic Elemen
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-290-9713 INTERCHANGEABLE
Flange,pipe
3130-01-326-068221536 INTERCHANGEABLE
Housing
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5965-01-362-5362SM-A-886429 INTERCHANGEABLE
Earphone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6680-01-416-285721536 INTERCHANGEABLE
Indicator,sight,liquid
Coffin Turbo Pump Inc
Cross-Reference Index
Part NumberManufacturer
R21536 Fisher Scientific Worldwide (USA)
21-536 Remel Inc. (USA)
98-2423 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
74-35540 Remel Inc. (USA)
R21536 PRIMARY Remel Inc. (USA)
Related Parts
2925-00-211-4022INTERCHANGEABLE
HEAD,MOUNTING
21536
2910-00-424-5800INTERCHANGEABLE
FILTER ELEMENT,FLUID
18519
6680-00-869-6244INTERCHANGEABLE
THERMOSTATIC ELEMEN
21536
4730-01-290-9713INTERCHANGEABLE
FLANGE,PIPE
3130-01-326-0682INTERCHANGEABLE
HOUSING
21536
5965-01-362-5362INTERCHANGEABLE
EARPHONE
SM-A-886429
6680-01-416-2857INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
21536

Frequently Asked Questions

What is NSN 6550-01-464-4699?

NSN 6550-01-464-4699 is a Acetic Acid and Sulfanic Acid So, manufactured by Remel Inc., classified under FSC 6550 (No Item Name Available). Status: active.

What are the part numbers for NSN 6550-01-464-4699?

NSN 6550-01-464-4699 has 5 cross-referenced part numbers: R21536 (Fisher Scientific Worldwide), 21-536 (Remel Inc.), 98-2423 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 74-35540 (Remel Inc.), R21536 (Remel Inc.).

What NSN replaces 6550-01-464-4699?

There are 7 known substitutes for 6550-01-464-4699: 2925-00-211-4022, 2910-00-424-5800, 6680-00-869-6244 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R21536?

Key specifications for R21536: General Characteristics Item Description: .8%; 0.5 ML-0.75 ML, 50'S;HAZARDOUS; Part Name Assigned by Controlling Agency: NITRATE A REAGENT .8% 0.5ML - 0.75 ML 50S. 2 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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