PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-16221Disk,valve

Chicago Pneumatic Tool Co · NSN 4820-00-371-6008 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-371-6008 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-371-6008. Primary manufacturer part number: 1-16221.
Features
  • Disk,valve — FSC 4820
  • Outside Diameter: 1.938 INCHES NOMINAL IN
  • Inside Diameter: 0.750 INCHES NOMINAL IN
  • Style Designator: PLAIN
  • Material: STEEL
  • 4 verified cross-references
  • Primary manufacturer: Chicago Pneumatic Tool Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-371-6008, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Chicago Pneumatic Tool Co. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-371-6008
Primary Part Number1-16221
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerChicago Pneumatic Tool Co
StatusCANCELLED
Outside Diameter1.938 INCHES NOMINAL IN
Inside Diameter0.750 INCHES NOMINAL IN
Style DesignatorPLAIN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-225-555939-150-04 INTERCHANGEABLE
Seal,oil,encased
Rexnord Industries, Llc Div Aerospace Solutions Downers Grove
5355-00-284-5186MS91531-2F2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3655-00-567-95721-16221 INTERCHANGEABLE
Disc,inlet Valve
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
6680-01-291-2042116221 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
1-16221 Chicago Pneumatic Tool Co (USA)
1-16221 Chicago Pneumatic Tool Co (USA)
1-16221 Air Products & Chemicals, Inc (USA)
9-263-01-0001 Air Products & Chemicals, Inc (USA)
Related Parts
5330-00-225-5559INTERCHANGEABLE
SEAL,OIL,ENCASED
39-150-04
5355-00-284-5186INTERCHANGEABLE
KNOB
MS91531-2F2B
3655-00-567-9572INTERCHANGEABLE
DISC,INLET VALVE
1-16221
6680-01-291-2042INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
116221

Frequently Asked Questions

What is NSN 4820-00-371-6008?

NSN 4820-00-371-6008 is a Disk,valve, manufactured by Chicago Pneumatic Tool Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-371-6008?

NSN 4820-00-371-6008 has 4 cross-referenced part numbers: 1-16221 (Chicago Pneumatic Tool Co), 1-16221 (Chicago Pneumatic Tool Co), 1-16221 (Air Products & Chemicals, Inc), 9-263-01-0001 (Air Products & Chemicals, Inc).

What NSN replaces 4820-00-371-6008?

There are 4 known substitutes for 4820-00-371-6008: 5330-00-225-5559, 5355-00-284-5186, 3655-00-567-9572 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-16221?

Key specifications for 1-16221: Outside Diameter: 1.938 INCHES NOMINAL IN; Inside Diameter: 0.750 INCHES NOMINAL IN; Style Designator: PLAIN; Material: STEEL. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-371-6008 still in active supply?

NSN 4820-00-371-6008 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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