PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21971Milwaukee Cylinder

Viasys Respiratory Care Inc. Dba Biosys Healthcare · NSN 3040-01-572-3192 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-572-3192 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-572-3192. Primary manufacturer part number: 21971.
Features
  • Milwaukee Cylinder — FSC 3040
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Viasys Respiratory Care Inc. Dba Biosys Healthcare
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Milwaukee Cylinder, cataloged under National Stock Number 3040-01-572-3192, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Viasys Respiratory Care Inc. Dba Biosys Healthcare. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-572-3192
Primary Part Number21971
Item NameMilwaukee Cylinder
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerViasys Respiratory Care Inc. Dba Biosys Healthcare
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-018-1244900027-107 INTERCHANGEABLE
Switch,rotary
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4820-00-064-742020137PC15-17T024 INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
1660-00-943-799121971-1 INTERCHANGEABLE
Cover,transformer
Hamilton Sundstrand Corporation Dba Collins Aerospace
5330-01-018-5422N49677PC217 INTERCHANGEABLE
Gasket
Todd Combustion Inc
5998-01-077-6128 INTERCHANGEABLE
Circuit Card Assembly
5998-01-087-780721971 INTERCHANGEABLE
Circuit Card Assembly
Spectral Dynamics Inc
Cross-Reference Index
Part NumberManufacturer
21971 Viasys Respiratory Care Inc. Dba Biosys Healthcare (USA)
Related Parts
5930-00-018-1244INTERCHANGEABLE
SWITCH,ROTARY
900027-107
4820-00-064-7420INTERCHANGEABLE
SEAT,VALVE
20137PC15-17T024
1660-00-943-7991INTERCHANGEABLE
COVER,TRANSFORMER
21971-1
5330-01-018-5422INTERCHANGEABLE
GASKET
N49677PC217
5998-01-077-6128INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5998-01-087-7807INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21971

Frequently Asked Questions

What is NSN 3040-01-572-3192?

NSN 3040-01-572-3192 is a Milwaukee Cylinder, manufactured by Viasys Respiratory Care Inc. Dba Biosys Healthcare, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-572-3192?

NSN 3040-01-572-3192 has 1 cross-referenced part number: 21971 (Viasys Respiratory Care Inc. Dba Biosys Healthcare).

What NSN replaces 3040-01-572-3192?

There are 6 known substitutes for 3040-01-572-3192: 5930-00-018-1244, 4820-00-064-7420, 1660-00-943-7991 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21971?

Key specifications for 21971: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 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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