PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

773-576Guide,valve Stem

Hardie-Tynes Co., Inc. · NSN 4820-01-259-5903 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-259-5903 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-259-5903. Primary manufacturer part number: 773-576.
Features
  • Guide,valve Stem — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Hardie-Tynes Co., Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Guide,valve Stem, cataloged under National Stock Number 4820-01-259-5903, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hardie-Tynes Co., Inc.. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGuide,valve Stem
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHardie-Tynes Co., Inc. (CAGE 27235)
Technical Specifications
ParameterValue
NSN4820-01-259-5903
Primary Part Number773-576
Item NameGuide,valve Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHardie-Tynes Co., Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-647-7106773576 INTERCHANGEABLE
Reactor
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5355-01-226-9320 INTERCHANGEABLE
Knob
4820-01-258-9398 INTERCHANGEABLE
Seat,valve
3040-01-259-1605 INTERCHANGEABLE
Lever,remote Control
2825-01-259-8009591-582AP INTERCHANGEABLE
Guide Spacer
Acme Products & Engineering Inc
2825-01-259-8010591-583 INTERCHANGEABLE
Guide,tappet
Steward Machine Co Inc
2825-01-259-8011 INTERCHANGEABLE
Head,coupling
Cross-Reference Index
Part NumberManufacturer
773-576 Hardie-Tynes Co., Inc. (USA)
N60-773 PC576 Hardie-Tynes Co., Inc. (USA)
N60-773 Hardie-Tynes Co., Inc. (USA)
Related Parts
5950-00-647-7106INTERCHANGEABLE
REACTOR
773576
5355-01-226-9320INTERCHANGEABLE
KNOB
4820-01-258-9398INTERCHANGEABLE
SEAT,VALVE
3040-01-259-1605INTERCHANGEABLE
LEVER,REMOTE CONTROL
2825-01-259-8009INTERCHANGEABLE
GUIDE SPACER
591-582AP
2825-01-259-8010INTERCHANGEABLE
GUIDE,TAPPET
591-583
2825-01-259-8011INTERCHANGEABLE
HEAD,COUPLING

Frequently Asked Questions

What is NSN 4820-01-259-5903?

NSN 4820-01-259-5903 is a Guide,valve Stem, manufactured by Hardie-Tynes Co., Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-259-5903?

NSN 4820-01-259-5903 has 3 cross-referenced part numbers: 773-576 (Hardie-Tynes Co., Inc.), N60-773 PC576 (Hardie-Tynes Co., Inc.), N60-773 (Hardie-Tynes Co., Inc.).

What NSN replaces 4820-01-259-5903?

There are 7 known substitutes for 4820-01-259-5903: 5950-00-647-7106, 5355-01-226-9320, 4820-01-258-9398 and 4 more. Verify interchangeability with system specifications before substitution.

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