PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204901Valve,check

Admiral Filter Company Llc · NSN 4820-01-411-2150 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-411-2150 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-411-2150. Primary manufacturer part number: 204901.
Features
  • Valve,check — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Admiral Filter Company Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-411-2150, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Admiral Filter Company Llc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersAdmiral Filter Company Llc (CAGE 25204)
Technical Specifications
ParameterValue
NSN4820-01-411-2150
Primary Part Number204901
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAdmiral Filter Company Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-01-341-6151204901 INTERCHANGEABLE
Sleeve Stem,valve
Aerosonic Llc
4820-01-411-2152204902 INTERCHANGEABLE
Valve,check
Admiral Filter Company Llc
4820-01-411-2760801-6405227-AY97 INTERCHANGEABLE
Valve,check
Naval Sea Systems Command
4820-01-500-2115204901 AND 204902 INTERCHANGEABLE
Body,valve
Admiral Filter Company Llc
5905-01-523-8998204901 INTERCHANGEABLE
Resistor,thermal
Setra Systems, Inc. Dba Gems Sensors
4730-01-679-487803138427 INTERCHANGEABLE
Clamp,hose
Grove U.s. Llc Dba Grove Us Llc
Cross-Reference Index
Part NumberManufacturer
690313-3 Admiral Filter Company Llc (USA)
204901 PRIMARY Admiral Filter Company Llc (USA)
690313 Admiral Filter Company Llc (USA)
Related Parts
4820-01-341-6151INTERCHANGEABLE
SLEEVE STEM,VALVE
204901
4820-01-411-2152INTERCHANGEABLE
VALVE,CHECK
204902
4820-01-411-2760INTERCHANGEABLE
VALVE,CHECK
801-6405227-AY97
4820-01-500-2115INTERCHANGEABLE
BODY,VALVE
204901 AND 204902
5905-01-523-8998INTERCHANGEABLE
RESISTOR,THERMAL
204901
4730-01-679-4878INTERCHANGEABLE
CLAMP,HOSE
03138427

Frequently Asked Questions

What is NSN 4820-01-411-2150?

NSN 4820-01-411-2150 is a Valve,check, manufactured by Admiral Filter Company Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-411-2150?

NSN 4820-01-411-2150 has 3 cross-referenced part numbers: 690313-3 (Admiral Filter Company Llc), 204901 (Admiral Filter Company Llc), 690313 (Admiral Filter Company Llc).

What NSN replaces 4820-01-411-2150?

There are 6 known substitutes for 4820-01-411-2150: 4820-01-341-6151, 4820-01-411-2152, 4820-01-411-2760 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com