PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5021-5 PT.NO. 17Seat,valve

Hunt Valve Company, Inc. · NSN 4820-01-521-8568 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-521-8568 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-521-8568. Primary manufacturer part number: 5021-5 PT.NO. 17.
Features
  • Seat,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-521-8568, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 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)
ManufacturersHunt Valve Company, Inc. (CAGE 11859); Pima Valve, Llc (CAGE 30263)
Technical Specifications
ParameterValue
NSN4820-01-521-8568
Primary Part Number5021-5 PT.NO. 17
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3040-00-243-5927SC-B-70101 INTERCHANGEABLE
Connecting Link,rigid
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2805-00-383-4043102721H INTERCHANGEABLE
Insulator
Whirlpool Corp Dba Whirlpool Corp
5330-00-576-4761 INTERCHANGEABLE
Seal,plain Encased
2520-01-166-2318000-50215-0000 INTERCHANGEABLE
Strip,indicator
Orscheln Products Llc
9905-01-184-5194 INTERCHANGEABLE
Plate,instruction
5930-01-185-970850215 INTERCHANGEABLE
Bonnet Assembly,swi
Setra Systems, Inc. Dba Gems Sensors
5935-01-310-9334213092-2 INTERCHANGEABLE
Insert,electrical Connector
Te Connectivity Corporation
4320-01-363-229250215 INTERCHANGEABLE
Pump,rotary
Fire-Bann Corp Lrd
2805-01-407-230250215 INTERCHANGEABLE
Oil Pump Assembly,engine
Trw Inc Trw Intl Trade Government Sales Dept
4820-01-521-63575021-5 INTERCHANGEABLE
Valve,stop-Check
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
5021-5 PT.NO. 17 Hunt Valve Company, Inc. (USA)
5021-5 PT.NO. 17 Pima Valve, Llc (USA)
5021-5 Pima Valve, Llc (USA)
Related Parts
3040-00-243-5927INTERCHANGEABLE
CONNECTING LINK,RIGID
SC-B-70101
2805-00-383-4043INTERCHANGEABLE
INSULATOR
102721H
5330-00-576-4761INTERCHANGEABLE
SEAL,PLAIN ENCASED
2520-01-166-2318INTERCHANGEABLE
STRIP,INDICATOR
000-50215-0000
9905-01-184-5194INTERCHANGEABLE
PLATE,INSTRUCTION
5930-01-185-9708INTERCHANGEABLE
BONNET ASSEMBLY,SWI
50215
5935-01-310-9334INTERCHANGEABLE
INSERT,ELECTRICAL CONNECTOR
213092-2
4320-01-363-2292INTERCHANGEABLE
PUMP,ROTARY
50215
2805-01-407-2302INTERCHANGEABLE
OIL PUMP ASSEMBLY,ENGINE
50215
4820-01-521-6357INTERCHANGEABLE
VALVE,STOP-CHECK
5021-5
4820-01-521-8458INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-521-8557INTERCHANGEABLE
HINGE,SWING CHECK VALVE

Frequently Asked Questions

What is NSN 4820-01-521-8568?

NSN 4820-01-521-8568 is a Seat,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-521-8568?

NSN 4820-01-521-8568 has 3 cross-referenced part numbers: 5021-5 PT.NO. 17 (Hunt Valve Company, Inc.), 5021-5 PT.NO. 17 (Pima Valve, Llc), 5021-5 (Pima Valve, Llc).

What NSN replaces 4820-01-521-8568?

There are 12 known substitutes for 4820-01-521-8568: 3040-00-243-5927, 2805-00-383-4043, 5330-00-576-4761 and 9 more. Verify interchangeability with system specifications before substitution.

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