PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42591Seat,valve

Woodward Hrt Inc · NSN 4820-00-072-5079 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-072-5079 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-072-5079. Primary manufacturer part number: 42591.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Woodward Hrt Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-072-5079, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Woodward Hrt Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 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)
ManufacturersWoodward Hrt Inc (CAGE 81873)
Technical Specifications
ParameterValue
NSN4820-00-072-5079
Primary Part Number42591
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWoodward Hrt Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2540-01-154-1357B1000AS INTERCHANGEABLE
Belt,vehicular Safety
H.o. Bostrom Company, Inc. Dba Ho Bostrom Co Inc
6515-01-295-17564259-1 INTERCHANGEABLE
Blood Sample Collecting Kit
Smiths Medical Asd Inc Dba Smiths Medical Asd, Inc
5930-01-323-020642591 INTERCHANGEABLE
Switch,flow
Thomas Products Llc
2940-01-523-7015 INTERCHANGEABLE
Parts Kit,air Filter
Cross-Reference Index
Part NumberManufacturer
42591 PRIMARY Woodward Hrt Inc (USA)
Related Parts
2540-01-154-1357INTERCHANGEABLE
BELT,VEHICULAR SAFETY
B1000AS
6515-01-295-1756INTERCHANGEABLE
BLOOD SAMPLE COLLECTING KIT
4259-1
5930-01-323-0206INTERCHANGEABLE
SWITCH,FLOW
42591
2940-01-523-7015INTERCHANGEABLE
PARTS KIT,AIR FILTER

Frequently Asked Questions

What is NSN 4820-00-072-5079?

NSN 4820-00-072-5079 is a Seat,valve, manufactured by Woodward Hrt Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-072-5079?

NSN 4820-00-072-5079 has 1 cross-referenced part number: 42591 (Woodward Hrt Inc).

What NSN replaces 4820-00-072-5079?

There are 4 known substitutes for 4820-00-072-5079: 2540-01-154-1357, 6515-01-295-1756, 5930-01-323-0206 and 1 more. Verify interchangeability with system specifications before substitution.

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