NSN 4820-01-539-5294 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-539-5294. Manufacturer of record part number: 9DM2-S.
Also searched as4820-01-539-5294 ·
4820015395294 ·
NIIN 015395294 ·
01-539-5294 ·
FSC 4820 Valves, Nonpowered · CAGE 79227 · 9DM2-S
Operating Pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading Method: SPRING
Identification
NSN: 4820-01-539-5294
NIIN: 015395294
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 9DM2-S
Manufacturer: Watts Regulator Company
General Description
The Valve,check, cataloged under National Stock Number 4820-01-539-5294, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 12 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
4820-01-539-5294
Primary Part Number
9DM2-S
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Watts Regulator Company
Status
ACTIVE
Flow Control Device
DISK
Furnished Items and Quantity
1 STRAINER
Mounting Position
HORIZONTAL OR VERTICAL
Style Designator
CROSS
Operating Pressure
175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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 4820-01-539-5294?
NSN 4820-01-539-5294 is a Valve,check, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-539-5294?
NSN 4820-01-539-5294 has 1 manufacturer part number on file: 9DM2-S (Watts Regulator Company).
What are the specifications of 9DM2-S?
Key specifications for 9DM2-S: Flow Control Device: DISK; Furnished Items and Quantity: 1 STRAINER; Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: CROSS. 12 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-539-5294 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.