NSN 4820-01-393-8000 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-393-8000. Manufacturer of record part number: 509-1.5IN.
Also searched as4820-01-393-8000 ·
4820013938000 ·
NIIN 013938000 ·
01-393-8000 ·
FSC 4820 Valves, Nonpowered · CAGE 76364 · 509-1.5IN
Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Direction: RIGHT-HAND ALL ENDS
Nominal Thread Size: 1.500 INCHES ALL ENDS IN
Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
Material: COPPER ALLOY BODY
Identification
NSN: 4820-01-393-8000
NIIN: 013938000
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 509-1.5IN
Manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
General Description
The Valve,check, cataloged under National Stock Number 4820-01-393-8000, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 8 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
Parameter
Value
NSN
4820-01-393-8000
Primary Part Number
509-1.5IN
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Status
ACTIVE
Flow Control Device
DISK
Style Designator
STRAIGHT THRU
Operating Pressure
125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (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 4820-01-393-8000?
NSN 4820-01-393-8000 is a Valve,check, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-393-8000?
NSN 4820-01-393-8000 has 1 manufacturer part number on file: 509-1.5IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
What are the specifications of 509-1.5IN?
Key specifications for 509-1.5IN: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Direction: RIGHT-HAND ALL ENDS. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-393-8000 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.