NSN 4820-01-392-0403 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-392-0403. Manufacturer of record part number: 3IN NO. 101M-CUS.
Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Disk Loading Method: SPRING
Material: COPPER ALLOY BODY
Material: NICKEL ALLOY FLOW CONTROL DEVICE
Material: NICKEL ALLOY SEAT
Valve Operation Method: AUTOMATIC
Identification
NSN: 4820-01-392-0403
NIIN: 013920403
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3IN NO. 101M-CUS
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty
General Description
The Valve,check, cataloged under National Stock Number 4820-01-392-0403, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-392-0403
Primary Part Number
3IN NO. 101M-CUS
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Core Industries Inc. Dba Mueller Steam Specialty
Status
ACTIVE
Flow Control Device
DISK
Operating Pressure
200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Core Industries Inc. Dba Mueller Steam Specialty (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 4820-01-392-0403?
NSN 4820-01-392-0403 is a Valve,check, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-392-0403?
NSN 4820-01-392-0403 has 1 manufacturer part number on file: 3IN NO. 101M-CUS (Core Industries Inc. Dba Mueller Steam Specialty).
What are the specifications of 3IN NO. 101M-CUS?
Key specifications for 3IN NO. 101M-CUS: Flow Control Device: DISK; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Disk Loading Method: SPRING; Special Features: VALVE SZ 3.000 IN. IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-392-0403 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.