PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

62304Seat,valve

Spirax Sarco Inc Dba Spirax Sarco · NSN 4820-01-415-2577 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-415-2577 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-415-2577. Primary manufacturer part number: 62304.
Features
  • Seat,valve — FSC 4820
  • Material: NICKEL ALLOY SEAT
  • Style Designator: PLAIN FLANGED
  • Seating Surface Shape: FLAT
  • 3 verified cross-references
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-415-2577, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-415-2577
Primary Part Number62304
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
MaterialNICKEL ALLOY SEAT
Style DesignatorPLAIN FLANGED
Seating Surface ShapeFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-230-52256230-4 INTERCHANGEABLE
O-Ring
Aerol Llc
5331-00-576-97322615-226 INTERCHANGEABLE
O-Ring
Fluid Conditioning Products, Inc.
6770-01-079-0078J429 INTERCHANGEABLE
Film,photographic,processed
Industrial Electronic Engineers, Inc.
4730-01-351-1158T0634 INTERCHANGEABLE
Trap,steam
Spirax Sarco Inc Dba Spirax Sarco
6210-01-383-3063 INTERCHANGEABLE
Light,indicator
4820-01-736-145262679 INTERCHANGEABLE
Repair Kit,valve
Spirax Sarco Inc Dba Spirax Sarco
Cross-Reference Index
Part NumberManufacturer
J-429 Spirax Sarco Inc Dba Spirax Sarco (USA)
J-429 PC. NO. 8 Spirax Sarco Inc Dba Spirax Sarco (USA)
62304 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
5331-00-230-5225INTERCHANGEABLE
O-RING
6230-4
5331-00-576-9732INTERCHANGEABLE
O-RING
2615-226
6770-01-079-0078INTERCHANGEABLE
FILM,PHOTOGRAPHIC,PROCESSED
J429
4730-01-351-1158INTERCHANGEABLE
TRAP,STEAM
T0634
6210-01-383-3063INTERCHANGEABLE
LIGHT,INDICATOR
4820-01-736-1452INTERCHANGEABLE
REPAIR KIT,VALVE
62679

Frequently Asked Questions

What is NSN 4820-01-415-2577?

NSN 4820-01-415-2577 is a Seat,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-415-2577?

NSN 4820-01-415-2577 has 3 cross-referenced part numbers: J-429 (Spirax Sarco Inc Dba Spirax Sarco), J-429 PC. NO. 8 (Spirax Sarco Inc Dba Spirax Sarco), 62304 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4820-01-415-2577?

There are 6 known substitutes for 4820-01-415-2577: 5331-00-230-5225, 5331-00-576-9732, 6770-01-079-0078 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 62304?

Key specifications for 62304: Material: NICKEL ALLOY SEAT; Style Designator: PLAIN FLANGED; End Item Identification: NIMITZ CLASS CVN; Special Features: TOP SEAT. 5 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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