PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1MBall,check

Psg California, Llc Div Dover Corporation · NSN 4820-01-323-5973 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-323-5973 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-323-5973. Primary manufacturer part number: 1M.
Features
  • Ball,check — FSC 4820
  • Valve Design Control Activity: 52837
  • Valve Model Number for Which Designed: M15
  • 1 verified cross-reference
  • Primary manufacturer: Psg California, Llc Div Dover Corporation
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Ball,check, cataloged under National Stock Number 4820-01-323-5973, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Psg California, Llc Div Dover Corporation. 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-323-5973
Primary Part Number1M
Item NameBall,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPsg California, Llc Div Dover Corporation
StatusACTIVE
Valve Design Control Activity52837
Valve Model Number for Which DesignedM15
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-289-424651502 INTERCHANGEABLE
Coupling Half,quick Disconnect
Bowes Mfg Inc
5340-00-357-92771092-M1 INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
6520-00-935-7167PLG1M INTERCHANGEABLE
Plugger,amalgam,dental
Hu-Friedy Mfg. Co., Llc
3455-00-990-33421M INTERCHANGEABLE
File,rotary
Martindale Electric Company, the
5342-01-330-22051M INTERCHANGEABLE
Mount,resilient,weapon System
Sunnex, Llc
3417-01-366-20421M INTERCHANGEABLE
Engraving Machine,pantograph
Gravograph-New Hermes, Inc
6515-01-448-17911M INTERCHANGEABLE
Hoop,traction
The Jerome Group Inc Dba Jerome Medical
6625-01-468-74401M INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
5340-01-582-8573 INTERCHANGEABLE
Paddle Handle
Cross-Reference Index
Part NumberManufacturer
1M Psg California, Llc Div Dover Corporation (USA)
Related Parts
4730-00-289-4246INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
51502
5340-00-357-9277INTERCHANGEABLE
KEY BLANK
1092-M1
6520-00-935-7167INTERCHANGEABLE
PLUGGER,AMALGAM,DENTAL
PLG1M
3455-00-990-3342INTERCHANGEABLE
FILE,ROTARY
1M
5342-01-330-2205INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
1M
3417-01-366-2042INTERCHANGEABLE
ENGRAVING MACHINE,PANTOGRAPH
1M
6515-01-448-1791INTERCHANGEABLE
HOOP,TRACTION
1M
6625-01-468-7440INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
1M
5340-01-582-8573INTERCHANGEABLE
PADDLE HANDLE

Frequently Asked Questions

What is NSN 4820-01-323-5973?

NSN 4820-01-323-5973 is a Ball,check, manufactured by Psg California, Llc Div Dover Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-323-5973?

NSN 4820-01-323-5973 has 1 cross-referenced part number: 1M (Psg California, Llc Div Dover Corporation).

What NSN replaces 4820-01-323-5973?

There are 9 known substitutes for 4820-01-323-5973: 4730-00-289-4246, 5340-00-357-9277, 6520-00-935-7167 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1M?

Key specifications for 1M: Valve Design Control Activity: 52837; Valve Model Number for Which Designed: M15. 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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