PartsTable TECHNICAL DATA SHEET
NSN 4820-01-679-8607Government record, cited

Valve, Check4820-01-679-8607

NSN 4820-01-679-8607 · NIIN 016798607 · Part number 1520C20
Nds International, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 5C5H7
Government record, cited
NSN 4820-01-679-8607 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-679-8607. Manufacturer of record part number: 1520C20.
Also searched as  4820-01-679-8607 · 4820016798607 · NIIN 016798607 · 01-679-8607 · FSC 4820 Valves, Nonpowered · CAGE 5C5H7 · 1520C20
Nearby stock numbers  ·
Features
  • Valve,check — FSC 4820
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Size: 2.000 INCHES IN
  • Maximum Operating Temp: 70.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Face to Face Distance: 6.140 INCHES IN
  • Media for Which Designed: WATER, FRESH SINGLE RESPONSE
Identification
  • NSN: 4820-01-679-8607
  • NIIN: 016798607
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: 1520C20
  • Manufacturer: Nds International, Inc.
General Description

The Valve,check, cataloged under National Stock Number 4820-01-679-8607, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nds International, Inc.. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-679-8607
Primary Part Number1520C20
Item NameValve,check
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerNds International, Inc.
StatusACTIVE
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorSTRAIGHT THRU
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size2.000 INCHES IN
Maximum Operating Temp70.0 FAHRENHEIT SINGLE RESPONSE DEGF
Face to Face Distance6.140 INCHES IN
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
MaterialRUBBER SYNTHETIC PACKING
MaterialPLASTIC POLYVINYL CHLORIDE (PVC) BODY
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1520C20 PRIMARY Nds International, Inc. (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-679-8607?

NSN 4820-01-679-8607 is a Valve,check, manufactured by Nds International, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-679-8607?

NSN 4820-01-679-8607 has 1 manufacturer part number on file: 1520C20 (Nds International, Inc.).

What are the specifications of 1520C20?

Key specifications for 1520C20: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 2.000 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-679-8607 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com