PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RJB3000-100-S6/F6S6TFGVHDValve,ball

F.s. Welsford Company · NSN 4820-01-451-5934 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-451-5934 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-451-5934. Primary manufacturer part number: RJB3000-100-S6/F6S6TFGVHD.
Features
  • Valve,ball — FSC 4820
  • 7 verified cross-references
  • Primary manufacturer: F.s. Welsford Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-451-5934, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is F.s. Welsford Company. This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,ball
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersF.s. Welsford Company (CAGE 0NB72); The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (CAGE 1QZK3); Cleveland Gear Company, Inc. Dba Cleveland Gear Co (CAGE 59958)
Technical Specifications
ParameterValue
NSN4820-01-451-5934
Primary Part NumberRJB3000-100-S6/F6S6TFGVHD
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerF.s. Welsford Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-201-355731-103 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
5136-00-239-2763 INTERCHANGEABLE
Die,thread Cutting
2920-00-450-949631-103 INTERCHANGEABLE
Switch,engine Starter,electrical
Pollak Joseph Corp
5930-00-827-9905 INTERCHANGEABLE
Switch,toggle
6665-00-828-4391 INTERCHANGEABLE
Detector,radiac
2940-01-239-5345 INTERCHANGEABLE
Filter Element,fluid
5330-01-326-190531103 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Liquid Metronics Inc
6515-01-419-6387311.03 INTERCHANGEABLE
Handle,screwdriver,maxillofacial
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3120-01-443-2402 INTERCHANGEABLE
Bearing,sleeve
4730-01-451-3757 INTERCHANGEABLE
Strainer,sediment
Cross-Reference Index
Part NumberManufacturer
RJB3000-100-S6/F6S6TFGVHD PRIMARY F.s. Welsford Company (USA)
311-03 ITEM 44 The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA)
ZH259C The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA)
311-03 ITEM 44 Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA)
ZH259 Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA)
311-03 Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA)
ZH259C Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA)
Related Parts
5935-00-201-3557INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-103
5136-00-239-2763INTERCHANGEABLE
DIE,THREAD CUTTING
2920-00-450-9496INTERCHANGEABLE
SWITCH,ENGINE STARTER,ELECTRICAL
31-103
5930-00-827-9905INTERCHANGEABLE
SWITCH,TOGGLE
6665-00-828-4391INTERCHANGEABLE
DETECTOR,RADIAC
2940-01-239-5345INTERCHANGEABLE
FILTER ELEMENT,FLUID
5330-01-326-1905INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
31103
6515-01-419-6387INTERCHANGEABLE
HANDLE,SCREWDRIVER,MAXILLOFACIAL
311.03
3120-01-443-2402INTERCHANGEABLE
BEARING,SLEEVE
4730-01-451-3757INTERCHANGEABLE
STRAINER,SEDIMENT
4730-01-451-4994INTERCHANGEABLE
BRUSH SCRAPER ASSY.
311-03 ITEM 7
5365-01-573-9577INTERCHANGEABLE
SHIM
31103

Frequently Asked Questions

What is NSN 4820-01-451-5934?

NSN 4820-01-451-5934 is a Valve,ball, manufactured by F.s. Welsford Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-451-5934?

NSN 4820-01-451-5934 has 7 cross-referenced part numbers: RJB3000-100-S6/F6S6TFGVHD (F.s. Welsford Company), 311-03 ITEM 44 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C), ZH259C (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C), 311-03 ITEM 44 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co), ZH259 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co) and 2 more.

What NSN replaces 4820-01-451-5934?

There are 12 known substitutes for 4820-01-451-5934: 5935-00-201-3557, 5136-00-239-2763, 2920-00-450-9496 and 9 more. Verify interchangeability with system specifications before substitution.

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