PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

371.0DRetainer,disk,valve

Magnatrol Valve Corp Div Clark-Cooper · NSN 4820-01-231-9801 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-231-9801 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-231-9801. Primary manufacturer part number: 371.0D.
Features
  • Retainer,disk,valve — FSC 4820
  • Material: NICKEL ALLOY
  • Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
  • 4 verified cross-references
  • Primary manufacturer: Magnatrol Valve Corp Div Clark-Cooper
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Retainer,disk,valve, cataloged under National Stock Number 4820-01-231-9801, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Magnatrol Valve Corp Div Clark-Cooper. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-231-9801
Primary Part Number371.0D
Item NameRetainer,disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMagnatrol Valve Corp Div Clark-Cooper
StatusACTIVE
MaterialNICKEL ALLOY
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
7510-00-275-85581136433 INTERCHANGEABLE
Ribbon,correction
International Business Machines Corp Parts Order Center Dept E - 54
4810-01-231-8634371-06A INTERCHANGEABLE
Seat,valve
Magnatrol Valve Corp Div Clark-Cooper
Cross-Reference Index
Part NumberManufacturer
371.0D Magnatrol Valve Corp Div Clark-Cooper (USA)
371-07A Magnatrol Valve Corp Div Clark-Cooper (USA)
371.07A Magnatrol Valve Corp Div Clark-Cooper (USA)
371.0D PC5 Magnatrol Valve Corp Div Clark-Cooper (USA)
Related Parts
7510-00-275-8558INTERCHANGEABLE
RIBBON,CORRECTION
1136433
4810-01-231-8634INTERCHANGEABLE
SEAT,VALVE
371-06A

Frequently Asked Questions

What is NSN 4820-01-231-9801?

NSN 4820-01-231-9801 is a Retainer,disk,valve, manufactured by Magnatrol Valve Corp Div Clark-Cooper, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-231-9801?

NSN 4820-01-231-9801 has 4 cross-referenced part numbers: 371.0D (Magnatrol Valve Corp Div Clark-Cooper), 371-07A (Magnatrol Valve Corp Div Clark-Cooper), 371.07A (Magnatrol Valve Corp Div Clark-Cooper), 371.0D PC5 (Magnatrol Valve Corp Div Clark-Cooper).

What NSN replaces 4820-01-231-9801?

There are 2 known substitutes for 4820-01-231-9801: 7510-00-275-8558, 4810-01-231-8634. Verify interchangeability with system specifications before substitution.

What are the specifications of 371.0D?

Key specifications for 371.0D: Material: NICKEL ALLOY; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com