PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

80478Seat,valve

Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company · NSN 4820-01-266-9676 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-266-9676 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-266-9676. Primary manufacturer part number: 80478.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • 3 verified cross-references
  • Primary manufacturer: Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-266-9676, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-266-9676
Primary Part Number80478
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
StatusACTIVE
Seating Surface ShapeFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5815-00-125-830880478 INTERCHANGEABLE
Post
Telemechanics Inc
4730-00-908-3194 INTERCHANGEABLE
Clamp,hose
5330-01-133-210980478 INTERCHANGEABLE
Gasket
Loctite Corp
5331-01-353-9383EPR2-119 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
Cross-Reference Index
Part NumberManufacturer
6001260T Kovatch Corp. (USA)
80478 PRIMARY Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company (USA)
078-00034-10 Kovatch Corp. (USA)
Related Parts
5815-00-125-8308INTERCHANGEABLE
POST
80478
4730-00-908-3194INTERCHANGEABLE
CLAMP,HOSE
5330-01-133-2109INTERCHANGEABLE
GASKET
80478
5331-01-353-9383INTERCHANGEABLE
O-RING
EPR2-119

Frequently Asked Questions

What is NSN 4820-01-266-9676?

NSN 4820-01-266-9676 is a Seat,valve, manufactured by Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-266-9676?

NSN 4820-01-266-9676 has 3 cross-referenced part numbers: 6001260T (Kovatch Corp.), 80478 (Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company), 078-00034-10 (Kovatch Corp.).

What NSN replaces 4820-01-266-9676?

There are 4 known substitutes for 4820-01-266-9676: 5815-00-125-8308, 4730-00-908-3194, 5330-01-133-2109 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 80478?

Key specifications for 80478: Seating Surface Shape: FLAT. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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