NSN 4820-01-390-8779 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-390-8779. Manufacturer of record part number: 2.5-52-INK-3-1.
Also searched as4820-01-390-8779 ·
4820013908779 ·
NIIN 013908779 ·
01-390-8779 ·
FSC 4820 Valves, Nonpowered · CAGE 76588 · 2.5-52-INK-3-1
Nominal Pipe Size Accommodated: 2.500 INCHES ALL ENDS IN
Connection Style: BEVELED (PIPE) ALL ENDS
Style Designator: STRAIGHT THRU
Material: STEEL CORROSION RESISTING BODY
Valve Operation Method: MANUAL
1 manufacturer part number on file
Manufacturer of record: Core Industries Inc. Dba Mueller Steam Specialty
Identification
NSN: 4820-01-390-8779
NIIN: 013908779
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2.5-52-INK-3-1
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty
General Description
The Valve,butterfly, cataloged under National Stock Number 4820-01-390-8779, 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 5 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.
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 4820-01-390-8779?
NSN 4820-01-390-8779 is a Valve,butterfly, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-390-8779?
NSN 4820-01-390-8779 has 1 manufacturer part number on file: 2.5-52-INK-3-1 (Core Industries Inc. Dba Mueller Steam Specialty).
What are the specifications of 2.5-52-INK-3-1?
Key specifications for 2.5-52-INK-3-1: Nominal Pipe Size Accommodated: 2.500 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Style Designator: STRAIGHT THRU; Material: STEEL CORROSION RESISTING BODY. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-390-8779 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.