PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2801K31Disk,valve

Mcmaster-Carr Supply Co · NSN 4820-00-599-8769 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-599-8769 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-599-8769. Primary manufacturer part number: 2801K31.
Features
  • Disk,valve — FSC 4820
  • Temp Rating: 32.0 FAHRENHEIT MINIMUM AND 212.0 FAHRENHEIT MAXIMUM DEGF
  • Style Designator: PLAIN
  • Outside Diameter: 0.688 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 1 TYPE AND B STYLE AND HARD COMPOSITION
  • Media for Which Designed: WATER, COLD OR WATER, HOT
  • Shoulder Height: 0.125 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-599-8769, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-599-8769
Primary Part Number2801K31
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Temp Rating32.0 FAHRENHEIT MINIMUM AND 212.0 FAHRENHEIT MAXIMUM DEGF
Style DesignatorPLAIN
Outside Diameter0.688 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 TYPE AND B STYLE AND HARD COMPOSITION
Media for Which DesignedWATER, COLD OR WATER, HOT
Shoulder Height0.125 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Inside Diameter0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-36512K5065 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Caterpillar Inc Div Caterpillar Defense
4820-00-282-6088W-150 INTERCHANGEABLE
Disk,valve
Radiator Specialty Company
4820-00-282-6089 INTERCHANGEABLE
Disk,valve
4820-00-282-6090 INTERCHANGEABLE
Disk,valve
4820-00-282-6102 INTERCHANGEABLE
Disk,valve
4820-00-282-6103444J75 INTERCHANGEABLE
Disk,valve
W.w. Grainger, Inc. Div Government Sales Division
4820-00-282-6104 INTERCHANGEABLE
Disk,valve
4820-00-282-6105 INTERCHANGEABLE
Disk,valve
4820-00-292-2836 INTERCHANGEABLE
Disk,valve
4820-00-595-1175 INTERCHANGEABLE
Disk,valve
Cross-Reference Index
Part NumberManufacturer
MILW19016 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2801K31 PRIMARY Mcmaster-Carr Supply Co (USA)
9895 Mindeco Corp (USA)
Related Parts
3110-00-100-3651INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2K5065
4820-00-282-6088INTERCHANGEABLE
DISK,VALVE
W-150
4820-00-282-6089INTERCHANGEABLE
DISK,VALVE
4820-00-282-6090INTERCHANGEABLE
DISK,VALVE
4820-00-282-6102INTERCHANGEABLE
DISK,VALVE
4820-00-282-6103INTERCHANGEABLE
DISK,VALVE
444J75
4820-00-282-6104INTERCHANGEABLE
DISK,VALVE
4820-00-282-6105INTERCHANGEABLE
DISK,VALVE
4820-00-292-2836INTERCHANGEABLE
DISK,VALVE
4820-00-595-1175INTERCHANGEABLE
DISK,VALVE
4820-00-595-2332INTERCHANGEABLE
DISK,VALVE
SLBB14
4820-00-729-6890INTERCHANGEABLE
DISK,VALVE

Frequently Asked Questions

What is NSN 4820-00-599-8769?

NSN 4820-00-599-8769 is a Disk,valve, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-599-8769?

NSN 4820-00-599-8769 has 3 cross-referenced part numbers: MILW19016 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2801K31 (Mcmaster-Carr Supply Co), 9895 (Mindeco Corp).

What NSN replaces 4820-00-599-8769?

There are 12 known substitutes for 4820-00-599-8769: 3110-00-100-3651, 4820-00-282-6088, 4820-00-282-6089 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2801K31?

Key specifications for 2801K31: Temp Rating: 32.0 FAHRENHEIT MINIMUM AND 212.0 FAHRENHEIT MAXIMUM DEGF; Style Designator: PLAIN; Outside Diameter: 0.688 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 1 TYPE AND B STYLE AND HARD COMPOSITION. 9 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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