PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N60-773 PC606Seat,valve

Hardie-Tynes Co., Inc. · NSN 4820-01-258-9398 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-258-9398 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-258-9398. Primary manufacturer part number: N60-773 PC606.
Features
  • Seat,valve — 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 Seat,valve, cataloged under National Stock Number 4820-01-258-9398, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHardie-Tynes Co., Inc. (CAGE 27235)
Technical Specifications
ParameterValue
NSN4820-01-258-9398
Primary Part NumberN60-773 PC606
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHardie-Tynes Co., Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-01-259-1605 INTERCHANGEABLE
Lever,remote Control
4820-01-259-5903 INTERCHANGEABLE
Guide,valve Stem
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
N60-773 PC606 Hardie-Tynes Co., Inc. (USA)
773-606 Hardie-Tynes Co., Inc. (USA)
N60-773 Hardie-Tynes Co., Inc. (USA)
Related Parts
3040-01-259-1605INTERCHANGEABLE
LEVER,REMOTE CONTROL
4820-01-259-5903INTERCHANGEABLE
GUIDE,VALVE STEM
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 4820-01-258-9398?

NSN 4820-01-258-9398 is a Seat,valve, manufactured by Hardie-Tynes Co., Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-258-9398?

NSN 4820-01-258-9398 has 3 cross-referenced part numbers: N60-773 PC606 (Hardie-Tynes Co., Inc.), 773-606 (Hardie-Tynes Co., Inc.), N60-773 (Hardie-Tynes Co., Inc.).

What NSN replaces 4820-01-258-9398?

There are 5 known substitutes for 4820-01-258-9398: 3040-01-259-1605, 4820-01-259-5903, 2825-01-259-8009 and 2 more. Verify interchangeability with system specifications before substitution.

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