NSN 4820-01-539-6434 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-539-6434. Manufacturer of record part number: S-413-Y 2.00IN.
Material Document and Classification: ASTM B62 NATIONAL SPEC SINGLE MATERIAL RESPONSE BODY
Valve Size: 2.000 INCHES IN
Media for Which Designed: WATER, FRESH SINGLE RESPONSE
Material: COPPER ALLOY BODY
Valve Operation Method: AUTOMATIC
Identification
NSN: 4820-01-539-6434
NIIN: 015396434
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: S-413-Y 2.00IN
Manufacturer: Nibco Inc Chemtrol Div
General Description
The Valve,check, cataloged under National Stock Number 4820-01-539-6434, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nibco Inc Chemtrol Div. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-539-6434
Primary Part Number
S-413-Y 2.00IN
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Nibco Inc Chemtrol Div
Status
ACTIVE
Flow Control Device
DISK
Style Designator
STRAIGHT THRU
Material Document and Classification
ASTM B62 NATIONAL SPEC SINGLE MATERIAL RESPONSE BODY
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
Related Parts in Valves
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
8171E-1/4HS2
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
D559A3M2
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 4820-01-539-6434?
NSN 4820-01-539-6434 is a Valve,check, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-539-6434?
NSN 4820-01-539-6434 has 1 manufacturer part number on file: S-413-Y 2.00IN (Nibco Inc Chemtrol Div).
What are the specifications of S-413-Y 2.00IN?
Key specifications for S-413-Y 2.00IN: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Material Document and Classification: ASTM B62 NATIONAL SPEC SINGLE MATERIAL RESPONSE BODY; Valve Size: 2.000 INCHES IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-539-6434 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.