NSN 4520-00-203-9792 · NIIN 002039792 · Part number 4
Maid-O-Mist Division Sunroc Corp · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 37794
Government record, cited
NSN 4520-00-203-9792 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-203-9792. Manufacturer of record part number: 4.
Also searched as4520-00-203-9792 ·
4520002039792 ·
NIIN 002039792 ·
00-203-9792 ·
FSC 4520 Space and Water Heating Equipment · CAGE 37794 · 4
Operating Pressure: 10.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Valve Shape: ANGLED
Nondefinitive Spec/std Data: 2 TYPE
Surface Treatment: NICKEL
Identification
NSN: 4520-00-203-9792
NIIN: 002039792
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 4
Manufacturer: Maid-O-Mist Division Sunroc Corp
General Description
The Valve,air Venting,steam, cataloged under National Stock Number 4520-00-203-9792, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Maid-O-Mist Division Sunroc Corp. Government technical data includes 9 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.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE
Frequently Asked Questions
What is NSN 4520-00-203-9792?
NSN 4520-00-203-9792 is a Valve,air Venting,steam, manufactured by Maid-O-Mist Division Sunroc Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-00-203-9792?
NSN 4520-00-203-9792 has 1 manufacturer part number on file: 4 (Maid-O-Mist Division Sunroc Corp).
What are the specifications of 4?
Key specifications for 4: Valve Air Return Prevention: REQUIRED; Valve Connection Size: 0.125 INCHES IN; Valve Water Pressure Position: OPEN; Operating Pressure: 10.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4520-00-203-9792 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.