PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D559A-2M-10Valve,relief,pressure and Temper

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-567-7580 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-567-7580 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-567-7580. Primary manufacturer part number: D559A-2M-10.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-567-7580, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,relief,pressure and Temper
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersCircor Aerospace, Inc. Dba Circor Aerospace Inc (CAGE 91816); Cadillac Gage Textron Inc. (CAGE 10237)
Technical Specifications
ParameterValue
NSN4820-01-567-7580
Primary Part NumberD559A-2M-10
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2815-01-049-8966212940 INTERCHANGEABLE
Insert,engine Valve Seat
Cummins Inc.
2815-01-515-3583212940 INTERCHANGEABLE
Deflector,dirt and Liquid
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Cross-Reference Index
Part NumberManufacturer
D559A-2M-10 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
212940 Cadillac Gage Textron Inc. (USA)
Related Parts
2815-01-049-8966INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
212940
2815-01-515-3583INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
212940

Frequently Asked Questions

What is NSN 4820-01-567-7580?

NSN 4820-01-567-7580 is a Valve,relief,pressure and Temper, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-567-7580?

NSN 4820-01-567-7580 has 2 cross-referenced part numbers: D559A-2M-10 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 212940 (Cadillac Gage Textron Inc.).

What NSN replaces 4820-01-567-7580?

There are 2 known substitutes for 4820-01-567-7580: 2815-01-049-8966, 2815-01-515-3583. Verify interchangeability with system specifications before substitution.

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