NSN 4820-01-388-2591 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-388-2591. Manufacturer of record part number: 65-8.
Also searched as4820-01-388-2591 ·
4820013882591 ·
NIIN 013882591 ·
01-388-2591 ·
FSC 4820 Valves, Nonpowered · CAGE 0LX27 · 65-8
Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM PACKING
Material: ALUMINUM ALLOY AND STEEL BODY LINING
Valve Operation Method: AUTOMATIC
1 manufacturer part number on file
Manufacturer of record: Watts Automatic Control Valve Inc
Identification
NSN: 4820-01-388-2591
NIIN: 013882591
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 65-8
Manufacturer: Watts Automatic Control Valve Inc
General Description
The Valve,float, cataloged under National Stock Number 4820-01-388-2591, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Automatic Control Valve Inc. Government technical data includes 4 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
4820-01-388-2591
Primary Part Number
65-8
Item Name
Valve,float
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Watts Automatic Control Valve Inc
Status
ACTIVE
Material
STEEL CORROSION RESISTING BODY
Material
RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM PACKING
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 4820-01-388-2591?
NSN 4820-01-388-2591 is a Valve,float, manufactured by Watts Automatic Control Valve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-388-2591?
NSN 4820-01-388-2591 has 1 manufacturer part number on file: 65-8 (Watts Automatic Control Valve Inc).
What are the specifications of 65-8?
Key specifications for 65-8: Material: STEEL CORROSION RESISTING BODY; Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM PACKING; Material: ALUMINUM ALLOY AND STEEL BODY LINING; Valve Operation Method: AUTOMATIC. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-388-2591 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.