PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5021-3 PT.NO. 6Disk,valve

Hunt Valve Company, Inc. · NSN 4820-01-521-8361 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-521-8361 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-521-8361. Primary manufacturer part number: 5021-3 PT.NO. 6.
Features
  • Disk,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 Disk,valve, cataloged under National Stock Number 4820-01-521-8361, 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 NameDisk,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersPima Valve, Llc (CAGE 30263); Hunt Valve Company, Inc. (CAGE 11859)
Technical Specifications
ParameterValue
NSN4820-01-521-8361
Primary Part Number5021-3 PT.NO. 6
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-018-5523F6U03001 INTERCHANGEABLE
Gasket Set
Sealcraft Corporation
5815-00-356-3285SCB70143 INTERCHANGEABLE
Arm
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5815-00-981-017650-213 INTERCHANGEABLE
Trunnion
Motorola Solutions Danmark A/s
5330-01-236-05025021-3 INTERCHANGEABLE
Gasket
Hoffmeyer Company, Inc.
4820-01-521-61465021-3 INTERCHANGEABLE
Valve,stop-Check
Hunt Valve Company, Inc.
4820-01-521-84455021-3 PT. NO. 16 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
4820-01-521-84475021-3 PT. NO. 17 INTERCHANGEABLE
Seat,valve
Hunt Valve Company, Inc.
4820-01-521-84485021-3 PT. NO. 18 INTERCHANGEABLE
Hinge,swing Check Valve
Hunt Valve Company, Inc.
5365-01-522-13525021-3-8 INTERCHANGEABLE
Plug,machine Thread
Hunt Valve Company, Inc.
5140-01-531-728850213 INTERCHANGEABLE
Tool Box,portable
American Apex Corporation
Cross-Reference Index
Part NumberManufacturer
5021-3 PT.NO. 6 Pima Valve, Llc (USA)
5021-3 Pima Valve, Llc (USA)
5021-3 PT.NO. 6 PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
5330-00-018-5523INTERCHANGEABLE
GASKET SET
F6U03001
5815-00-356-3285INTERCHANGEABLE
ARM
SCB70143
5815-00-981-0176INTERCHANGEABLE
TRUNNION
50-213
5330-01-236-0502INTERCHANGEABLE
GASKET
5021-3
4820-01-521-6146INTERCHANGEABLE
VALVE,STOP-CHECK
5021-3
4820-01-521-8445INTERCHANGEABLE
STEM,FLUID VALVE
5021-3 PT. NO. 16
4820-01-521-8447INTERCHANGEABLE
SEAT,VALVE
5021-3 PT. NO. 17
4820-01-521-8448INTERCHANGEABLE
HINGE,SWING CHECK VALVE
5021-3 PT. NO. 18
5365-01-522-1352INTERCHANGEABLE
PLUG,MACHINE THREAD
5021-3-8
5140-01-531-7288INTERCHANGEABLE
TOOL BOX,PORTABLE
50213
6150-01-587-1754INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
209-000305
5995-01-664-7589INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
50213

Frequently Asked Questions

What is NSN 4820-01-521-8361?

NSN 4820-01-521-8361 is a Disk,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-521-8361?

NSN 4820-01-521-8361 has 3 cross-referenced part numbers: 5021-3 PT.NO. 6 (Pima Valve, Llc), 5021-3 (Pima Valve, Llc), 5021-3 PT.NO. 6 (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-521-8361?

There are 12 known substitutes for 4820-01-521-8361: 5330-00-018-5523, 5815-00-356-3285, 5815-00-981-0176 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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