PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1AXP819-003Valve,safety Relief

Danfoss Fluid Power Inc Easley Opn · NSN 4820-01-017-2666 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-017-2666 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-017-2666. Primary manufacturer part number: 1AXP819-003.
Features
  • Valve,safety Relief — FSC 4820
  • Valve Operation Method: AUTOMATIC
  • Material: STEEL STEM
  • Material: STEEL SEAT
  • Material: ALUMINUM BODY
  • Mounting Facility: THREADED FASTENER
  • Material: STEEL FLOW CONTROL DEVICE
  • Flow Control Device: DISK
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Stem construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-017-2666, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Danfoss Fluid Power Inc Easley Opn. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-017-2666
Primary Part Number1AXP819-003
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDanfoss Fluid Power Inc Easley Opn
StatusACTIVE
Valve Operation MethodAUTOMATIC
MaterialSTEEL STEM
MaterialSTEEL SEAT
MaterialALUMINUM BODY
Mounting FacilityTHREADED FASTENER
MaterialSTEEL FLOW CONTROL DEVICE
Flow Control DeviceDISK
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Disk Loading MethodSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
8475-00-671-47271009-12 INTERCHANGEABLE
Undershirt
Naval Air Development Center Warminster Navairsyscom Hq
1680-00-928-855410091-2 INTERCHANGEABLE
Seat,poppet Valve
Essex Industries Inc Div Manufacturing Division
5905-00-943-7538100912 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Crane Electronics, Inc.
5340-00-969-6407MS35812-1 INTERCHANGEABLE
Clevis,rod End
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5935-01-088-0887ST3M546-3 INTERCHANGEABLE
Plate,retaining,electrical Conne
The Boeing Company Div Defense
5999-01-300-7528 INTERCHANGEABLE
Pole Piece,magnet
4820-01-680-585510091-2 INTERCHANGEABLE
Valve Assembly
Morpac Industries, Inc Div Actuator
Cross-Reference Index
Part NumberManufacturer
B-100912 Komatsu America Corporation (USA)
100912 Komatsu America Corporation (USA)
D-100912 Komatsu America Corporation (USA)
1AXP819-003 PRIMARY Danfoss Fluid Power Inc Easley Opn (USA)
Related Parts
8475-00-671-4727INTERCHANGEABLE
UNDERSHIRT
1009-12
1680-00-928-8554INTERCHANGEABLE
SEAT,POPPET VALVE
10091-2
5905-00-943-7538INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
100912
5340-00-969-6407INTERCHANGEABLE
CLEVIS,ROD END
MS35812-1
5935-01-088-0887INTERCHANGEABLE
PLATE,RETAINING,ELECTRICAL CONNE
ST3M546-3
5999-01-300-7528INTERCHANGEABLE
POLE PIECE,MAGNET
4820-01-680-5855INTERCHANGEABLE
VALVE ASSEMBLY
10091-2

Frequently Asked Questions

What is NSN 4820-01-017-2666?

NSN 4820-01-017-2666 is a Valve,safety Relief, manufactured by Danfoss Fluid Power Inc Easley Opn, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-017-2666?

NSN 4820-01-017-2666 has 4 cross-referenced part numbers: B-100912 (Komatsu America Corporation), 100912 (Komatsu America Corporation), D-100912 (Komatsu America Corporation), 1AXP819-003 (Danfoss Fluid Power Inc Easley Opn).

What NSN replaces 4820-01-017-2666?

There are 7 known substitutes for 4820-01-017-2666: 8475-00-671-4727, 1680-00-928-8554, 5905-00-943-7538 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1AXP819-003?

Key specifications for 1AXP819-003: Valve Operation Method: AUTOMATIC; Material: STEEL STEM; Material: STEEL SEAT; Material: ALUMINUM BODY. 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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