PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66449Valve,bleed

Davey Compressor Co Div of Keco Industries Inc · NSN 4820-01-009-9223 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-009-9223 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-009-9223. Primary manufacturer part number: 66449.
Features
  • Valve,bleed — FSC 4820
  • General Characteristics Item Description: CONTINUOUS THIRD STAGE
  • 4 verified cross-references
  • Primary manufacturer: Davey Compressor Co Div of Keco Industries Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,bleed, cataloged under National Stock Number 4820-01-009-9223, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Davey Compressor Co Div of Keco Industries Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN4820-01-009-9223
Primary Part Number66449
Item NameValve,bleed
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDavey Compressor Co Div of Keco Industries Inc
StatusACTIVE
General Characteristics Item DescriptionCONTINUOUS THIRD STAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6680-00-111-1088664491 INTERCHANGEABLE
Sight Glass
L3harris Mas Inc Div L3harris Mas Inc.
4730-00-287-1564 INTERCHANGEABLE
Tee,pipe to Tube
2810-00-512-997366449 INTERCHANGEABLE
Body,oil Pump Check
Curtiss-Wright Controls, Inc. Div Actuation Division
5330-00-543-612866449 INTERCHANGEABLE
Gasket
L3harris Technologies, Inc Div Space & Airborne Systems
2590-01-257-6549664491 INTERCHANGEABLE
Adapter Assembly,ve
Thermo Jarrell Ash Corp Baird Div
5940-01-649-881466449 INTERCHANGEABLE
Terminal Junction Block,sectiona
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
66449 Davey Compressor Co Div of Keco Industries Inc (USA)
66449-1 Drs Environmental Systems Inc (USA)
66449-1 Hdt Expeditionary Systems Inc (USA)
66449-1 Keco Industries, Inc. (USA)
Related Parts
6680-00-111-1088INTERCHANGEABLE
SIGHT GLASS
664491
4730-00-287-1564INTERCHANGEABLE
TEE,PIPE TO TUBE
2810-00-512-9973INTERCHANGEABLE
BODY,OIL PUMP CHECK
66449
5330-00-543-6128INTERCHANGEABLE
GASKET
66449
2590-01-257-6549INTERCHANGEABLE
ADAPTER ASSEMBLY,VE
664491
5940-01-649-8814INTERCHANGEABLE
TERMINAL JUNCTION BLOCK,SECTIONA
66449

Frequently Asked Questions

What is NSN 4820-01-009-9223?

NSN 4820-01-009-9223 is a Valve,bleed, manufactured by Davey Compressor Co Div of Keco Industries Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-009-9223?

NSN 4820-01-009-9223 has 4 cross-referenced part numbers: 66449 (Davey Compressor Co Div of Keco Industries Inc), 66449-1 (Drs Environmental Systems Inc), 66449-1 (Hdt Expeditionary Systems Inc), 66449-1 (Keco Industries, Inc.).

What NSN replaces 4820-01-009-9223?

There are 6 known substitutes for 4820-01-009-9223: 6680-00-111-1088, 4730-00-287-1564, 2810-00-512-9973 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66449?

Key specifications for 66449: End Item Identification: COMPRESSOR TYPE MC-11; General Characteristics Item Description: CONTINUOUS THIRD STAGE. 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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