PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

235111Disk,valve

Allied Systems Company Dba Allied Systems Co · NSN 4820-01-266-1501 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-266-1501 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-266-1501. Primary manufacturer part number: 235111.
Features
  • Disk,valve — FSC 4820
  • Style Designator: POPPET
  • Outside Diameter: 1.130 INCHES NOMINAL IN
  • Material Document and Classification: AISI 1144 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 1144
  • 3 verified cross-references
  • Primary manufacturer: Allied Systems Company Dba Allied Systems Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 1144 construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-266-1501, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allied Systems Company Dba Allied Systems Co. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-266-1501
Primary Part Number235111
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAllied Systems Company Dba Allied Systems Co
StatusACTIVE
Style DesignatorPOPPET
Outside Diameter1.130 INCHES NOMINAL IN
Material Document and ClassificationAISI 1144 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 1144
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3030-00-288-086023425 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
5305-00-638-1309207480 INTERCHANGEABLE
Screw,cap,socket Head
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
2995-01-005-161824423 INTERCHANGEABLE
Lead High Tension
Unison Industries Llc
6515-01-596-51928881225182 INTERCHANGEABLE
Administration Set,winged
Covidien Healthcare Div Medical
5340-01-617-073124423 INTERCHANGEABLE
Standoff,threaded,spacing
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
235111 Allied Systems Company Dba Allied Systems Co (USA)
24423 Paccar Winch Inc Dba Paccar Winch Division (USA)
207480 Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations (USA)
Related Parts
3030-00-288-0860INTERCHANGEABLE
BELT,V
23425
5305-00-638-1309INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
207480
2995-01-005-1618INTERCHANGEABLE
LEAD HIGH TENSION
24423
6515-01-596-5192INTERCHANGEABLE
ADMINISTRATION SET,WINGED
8881225182
5340-01-617-0731INTERCHANGEABLE
STANDOFF,THREADED,SPACING
24423

Frequently Asked Questions

What is NSN 4820-01-266-1501?

NSN 4820-01-266-1501 is a Disk,valve, manufactured by Allied Systems Company Dba Allied Systems Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-266-1501?

NSN 4820-01-266-1501 has 3 cross-referenced part numbers: 235111 (Allied Systems Company Dba Allied Systems Co), 24423 (Paccar Winch Inc Dba Paccar Winch Division), 207480 (Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations).

What NSN replaces 4820-01-266-1501?

There are 5 known substitutes for 4820-01-266-1501: 3030-00-288-0860, 5305-00-638-1309, 2995-01-005-1618 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 235111?

Key specifications for 235111: Overall Height: 1.469 INCHES NOMINAL IN; Style Designator: POPPET; Outside Diameter: 1.130 INCHES NOMINAL IN; Material Document and Classification: AISI 1144 ASSN STD SINGLE MATERIAL RESPONSE. 5 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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