NSN 4820-01-585-7879 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-585-7879. Manufacturer of record part number: 909AGA.
Functional Description: PROVIDES THE UNOBSTRUCTED, PHYSICAL SEPARATION BETWEEN THE DISCHARGE END OF A POTABLE WATER SUPPLY LINE AND AN OPEN RECEIVING VESSEL
2 manufacturer part numbers on file
Manufacturer of record: Watts Regulator Company
Identification
NSN: 4820-01-585-7879
NIIN: 015857879
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 909AGA
Manufacturer: Watts Regulator Company
General Description
The Airgap, cataloged under National Stock Number 4820-01-585-7879, 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 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-585-7879
Primary Part Number
909AGA
Item Name
Airgap
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Watts Regulator Company
Status
ACTIVE
Functional Description
PROVIDES THE UNOBSTRUCTED, PHYSICAL SEPARATION BETWEEN THE DISCHARGE END OF A POTABLE WATER SUPPLY LINE AND AN OPEN RECEIVING VESSEL
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 4820-01-585-7879?
NSN 4820-01-585-7879 is a Airgap, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-585-7879?
NSN 4820-01-585-7879 has 2 manufacturer part numbers on file: 909AGA (Watts Regulator Company), 0881399 (Watts Regulator Company).
What are the specifications of 909AGA?
Key specifications for 909AGA: Functional Description: PROVIDES THE UNOBSTRUCTED, PHYSICAL SEPARATION BETWEEN THE DISCHARGE END OF A POTABLE WATER SUPPLY LINE AND AN OPEN RECEIVING VESSEL; End Item Identification: NEW CONSTRUCTION LCS1. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-585-7879 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.