PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7-863-6Valve,safety Relief

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 4820-01-088-9594 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-088-9594 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-088-9594. Primary manufacturer part number: 7-863-6.
Features
  • Valve,safety Relief — FSC 4820
  • Flow Control Device: POPPET
  • Nominal Thread Size: 0.562 INCHES ALL ENDS IN
  • Thread Series Designator: UNF ALL ENDS
  • Style Designator: ANGLE
  • Thread Class: 2B ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Valve Operation Method: AUTOMATIC
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-088-9594, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 13 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-088-9594
Primary Part Number7-863-6
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Flow Control DevicePOPPET
Nominal Thread Size0.562 INCHES ALL ENDS IN
Thread Series DesignatorUNF ALL ENDS
Style DesignatorANGLE
Thread Class2B ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Valve Operation MethodAUTOMATIC
Connection TypeTHREADED INTERNAL BOSS ALL ENDS
Connection StyleGASKET SEAL(BOSS) ALL ENDS
MaterialSTEEL CORROSION RESISTING OVERALL
Media for Which DesignedOXYGEN, GASEOUS SINGLE RESPONSE
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Opening Pressure Setting90.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3455-00-027-2587 INTERCHANGEABLE
File,rotary
2915-00-621-166280959 INTERCHANGEABLE
Parts Kit,fuel Control
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
7-863-6 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
7-863-6 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
1014-B706 Cepeda Associates, Inc. Dba Cepeda Associates Inc (USA)
Related Parts
3455-00-027-2587INTERCHANGEABLE
FILE,ROTARY
2915-00-621-1662INTERCHANGEABLE
PARTS KIT,FUEL CONTROL
80959

Frequently Asked Questions

What is NSN 4820-01-088-9594?

NSN 4820-01-088-9594 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-088-9594?

NSN 4820-01-088-9594 has 3 cross-referenced part numbers: 7-863-6 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 7-863-6 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 1014-B706 (Cepeda Associates, Inc. Dba Cepeda Associates Inc).

What NSN replaces 4820-01-088-9594?

There are 2 known substitutes for 4820-01-088-9594: 3455-00-027-2587, 2915-00-621-1662. Verify interchangeability with system specifications before substitution.

What are the specifications of 7-863-6?

Key specifications for 7-863-6: Flow Control Device: POPPET; Nominal Thread Size: 0.562 INCHES ALL ENDS IN; Thread Series Designator: UNF ALL ENDS; Style Designator: ANGLE. 13 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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