PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90471-1.50IN FN 4Retainer,seat,valve

Griswold Industries Dba Cla-Val Co · NSN 4820-01-546-9939 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-546-9939 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-546-9939. Primary manufacturer part number: 90471-1.50IN FN 4.
Features
  • Retainer,seat,valve — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Retainer,seat,valve, cataloged under National Stock Number 4820-01-546-9939, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. This item has 4 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 NameRetainer,seat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersGriswold Industries Dba Cla-Val Co (CAGE 86184)
Technical Specifications
ParameterValue
NSN4820-01-546-9939
Primary Part Number90471-1.50IN FN 4
Item NameRetainer,seat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
9540-00-401-6825 INTERCHANGEABLE
Beam,structural
5950-01-014-1517 INTERCHANGEABLE
Coil,radio Frequency
4810-01-098-9251181PM-EP INTERCHANGEABLE
Valve,globe
Griswold Industries Dba Cla-Val Co
5315-01-546-925964145G INTERCHANGEABLE
Pin,straight,headless
Griswold Industries Dba Cla-Val Co
4820-01-546-993290471-1.50IN FN 14 INTERCHANGEABLE
Stem,fluid Valve
Griswold Industries Dba Cla-Val Co
4820-01-546-993790471-1.50IN FN 13 INTERCHANGEABLE
Stem,fluid Valve
Griswold Industries Dba Cla-Val Co
4820-01-570-4526V-6317-01K INTERCHANGEABLE
Retainer,disk,valve
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
39987 Griswold Industries Dba Cla-Val Co (USA)
39987D Griswold Industries Dba Cla-Val Co (USA)
90471 Griswold Industries Dba Cla-Val Co (USA)
90471-1.50IN FN 4 PRIMARY Griswold Industries Dba Cla-Val Co (USA)
Related Parts
9540-00-401-6825INTERCHANGEABLE
BEAM,STRUCTURAL
5950-01-014-1517INTERCHANGEABLE
COIL,RADIO FREQUENCY
4810-01-098-9251INTERCHANGEABLE
VALVE,GLOBE
181PM-EP
5315-01-546-9259INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
64145G
4820-01-546-9932INTERCHANGEABLE
STEM,FLUID VALVE
90471-1.50IN FN 14
4820-01-546-9937INTERCHANGEABLE
STEM,FLUID VALVE
90471-1.50IN FN 13
4820-01-570-4526INTERCHANGEABLE
RETAINER,DISK,VALVE
V-6317-01K

Frequently Asked Questions

What is NSN 4820-01-546-9939?

NSN 4820-01-546-9939 is a Retainer,seat,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-546-9939?

NSN 4820-01-546-9939 has 4 cross-referenced part numbers: 39987 (Griswold Industries Dba Cla-Val Co), 39987D (Griswold Industries Dba Cla-Val Co), 90471 (Griswold Industries Dba Cla-Val Co), 90471-1.50IN FN 4 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-546-9939?

There are 7 known substitutes for 4820-01-546-9939: 9540-00-401-6825, 5950-01-014-1517, 4810-01-098-9251 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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