PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

040717Valve,safety Relief

Woodward, Inc. · NSN 4820-00-470-6823 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-470-6823 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-470-6823. Primary manufacturer part number: 040717.
Features
  • Valve,safety Relief — FSC 4820
  • Bonnet Type: INSIDE SCREW
  • Style Designator: STRAIGHT THRU
  • Bonnet Attachment Method: THREADED
  • Connection Type: THREADED EXTERNAL BOSS FIRST END
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
  • Thread Class: 3A FIRST END A
  • Thread Direction: RIGHT-HAND FIRST END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-470-6823, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Woodward, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-470-6823
Primary Part Number040717
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWoodward, Inc.
StatusCANCELLED
Bonnet TypeINSIDE SCREW
Style DesignatorSTRAIGHT THRU
Bonnet Attachment MethodTHREADED
Connection TypeTHREADED EXTERNAL BOSS FIRST END
Nominal Thread Size0.562 INCHES FIRST END IN
Thread Class3A FIRST END A
Thread DirectionRIGHT-HAND FIRST END
Thread Series DesignatorUNF FIRST END
MaterialCOPPER ALLOY OVERALL
Flow Control DeviceDISK
Valve Operation MethodAUTOMATIC
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5305-00-207-56380406-017 INTERCHANGEABLE
Screw,machine
Lockheed Martin Corporation Div Rms - Mitchel Field
6515-01-520-5195602820 INTERCHANGEABLE
Catheter,intravenous
Bound Tree Medical Llc Div Bound Tree Medical
Cross-Reference Index
Part NumberManufacturer
040717 Woodward, Inc. Div Fuel Systems and Controls (USA)
040717 PRIMARY Woodward, Inc. (USA)
Related Parts
5305-00-207-5638INTERCHANGEABLE
SCREW,MACHINE
0406-017
6515-01-520-5195INTERCHANGEABLE
CATHETER,INTRAVENOUS
602820

Frequently Asked Questions

What is NSN 4820-00-470-6823?

NSN 4820-00-470-6823 is a Valve,safety Relief, manufactured by Woodward, Inc., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-470-6823?

NSN 4820-00-470-6823 has 2 cross-referenced part numbers: 040717 (Woodward, Inc. Div Fuel Systems and Controls), 040717 (Woodward, Inc.).

What NSN replaces 4820-00-470-6823?

There are 2 known substitutes for 4820-00-470-6823: 5305-00-207-5638, 6515-01-520-5195. Verify interchangeability with system specifications before substitution.

What are the specifications of 040717?

Key specifications for 040717: Bonnet Type: INSIDE SCREW; Style Designator: STRAIGHT THRU; Bonnet Attachment Method: THREADED; Connection Type: THREADED EXTERNAL BOSS FIRST END. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-470-6823 still in active supply?

NSN 4820-00-470-6823 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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