PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-644-75Valve,check

Parker Hannifin Corporation Div Aerospace Group Headquarters · NSN 4820-00-486-2717 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-486-2717 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-486-2717. Primary manufacturer part number: 10-644-75.
Features
  • Valve,check — FSC 4820
  • Material: ALUMINUM ALLOY BODY
  • Style Designator: STRAIGHT THRU
  • Flow Control Device: DISK
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
  • Thread Series Designator: UNF FIRST END
  • Thread Direction: RIGHT-HAND SECOND END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,check, cataloged under National Stock Number 4820-00-486-2717, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Aerospace Group Headquarters. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-486-2717
Primary Part Number10-644-75
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Aerospace Group Headquarters
StatusCANCELLED
MaterialALUMINUM ALLOY BODY
Style DesignatorSTRAIGHT THRU
Flow Control DeviceDISK
Nominal Thread Size0.250 INCHES SECOND END IN
Nominal Thread Size0.562 INCHES FIRST END IN
Thread Series DesignatorUNF FIRST END
Thread DirectionRIGHT-HAND SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
MaterialSTEEL FLOW CONTROL DEVICE
Connection StylePLAIN (PIPE) SECOND END
MaterialSTEEL COMP 416SE SEAT
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection StyleFLARED (TUBE) FIRST END
Disk Loading MethodSPRING
Thread DirectionRIGHT-HAND FIRST END
Thread Class3A FIRST END A
Valve Operation MethodAUTOMATIC
Seat Angle37.0 DEGREES FIRST END
Thread Series DesignatorNPT SECOND END
Mounting PositionHORIZONTAL OR VERTICAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5360-00-205-4485 INTERCHANGEABLE
Spring,helical,compression
2805-00-353-78741064475 INTERCHANGEABLE
Piston Ring Assembl
Chrysler Realty Company Llc Dba Daimler Chrysler
3040-00-710-0725A1-17 INTERCHANGEABLE
Shaft,precision Gro
Roller Bearing Co of America, Inc Div Pic Design
5998-00-878-6660SM-D-640159 INTERCHANGEABLE
Circuit Card Assembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
1115761 The Boeing Company (USA)
10-644-75 Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
1115761 The Boeing Company (USA)
10-644-75 PRIMARY Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
525FT6D Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
Related Parts
5360-00-205-4485INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2805-00-353-7874INTERCHANGEABLE
PISTON RING ASSEMBL
1064475
3040-00-710-0725INTERCHANGEABLE
SHAFT,PRECISION GRO
A1-17
5998-00-878-6660INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
SM-D-640159

Frequently Asked Questions

What is NSN 4820-00-486-2717?

NSN 4820-00-486-2717 is a Valve,check, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-486-2717?

NSN 4820-00-486-2717 has 5 cross-referenced part numbers: 1115761 (The Boeing Company), 10-644-75 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), 1115761 (The Boeing Company), 10-644-75 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 525FT6D (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters).

What NSN replaces 4820-00-486-2717?

There are 4 known substitutes for 4820-00-486-2717: 5360-00-205-4485, 2805-00-353-7874, 3040-00-710-0725 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-644-75?

Key specifications for 10-644-75: Material: ALUMINUM ALLOY BODY; Style Designator: STRAIGHT THRU; Flow Control Device: DISK; Nominal Thread Size: 0.250 INCHES SECOND END IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-486-2717 still in active supply?

NSN 4820-00-486-2717 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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