PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X-28526 PIECE 17Seat,valve

Spx Flow Us, Llc Dba Spx Valves & Controls · NSN 4820-01-218-3415 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-218-3415 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-218-3415. Primary manufacturer part number: X-28526 PIECE 17.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL CORROSION RESISTING OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Spx Flow Us, Llc Dba Spx Valves & Controls
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-218-3415, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spx Flow Us, Llc Dba Spx Valves & Controls. Government technical data includes 1 verified specification, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-218-3415
Primary Part NumberX-28526 PIECE 17
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpx Flow Us, Llc Dba Spx Valves & Controls
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-1529N11123 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
3110-00-108-9168 INTERCHANGEABLE
Bearing,ball,annular
2520-00-354-377011123 INTERCHANGEABLE
Disk,clutch,vehicular
Sachs-Boge of America
4730-00-491-9576 INTERCHANGEABLE
Adapter,straight,tube to Boss
6610-00-631-2715 INTERCHANGEABLE
Harness Assy
5340-00-687-337411114P11 INTERCHANGEABLE
Clamp,loop
Taylor Machine Works Inc
5315-00-798-1061 INTERCHANGEABLE
Pin,spring
4730-00-827-0094111-23 INTERCHANGEABLE
Nipple,tube
Crane Carrier Company, Llc
5330-01-013-712911123 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-01-108-530212299346 INTERCHANGEABLE
Retainer,packing
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
X-28526 PIECE 17 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
X-28526 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
11123 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
Related Parts
4820-00-036-1529INTERCHANGEABLE
DISK,VALVE
N11123
3110-00-108-9168INTERCHANGEABLE
BEARING,BALL,ANNULAR
2520-00-354-3770INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
11123
4730-00-491-9576INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
6610-00-631-2715INTERCHANGEABLE
HARNESS ASSY
5340-00-687-3374INTERCHANGEABLE
CLAMP,LOOP
11114P11
5315-00-798-1061INTERCHANGEABLE
PIN,SPRING
4730-00-827-0094INTERCHANGEABLE
NIPPLE,TUBE
111-23
5330-01-013-7129INTERCHANGEABLE
SEAL,PLAIN ENCASED
11123
5330-01-108-5302INTERCHANGEABLE
RETAINER,PACKING
12299346
2990-01-173-9516INTERCHANGEABLE
MUFFLER,EXHAUST
MOMO9-0124
5930-01-322-1975INTERCHANGEABLE
SWITCH,SENSITIVE

Frequently Asked Questions

What is NSN 4820-01-218-3415?

NSN 4820-01-218-3415 is a Seat,valve, manufactured by Spx Flow Us, Llc Dba Spx Valves & Controls, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-218-3415?

NSN 4820-01-218-3415 has 3 cross-referenced part numbers: X-28526 PIECE 17 (Spx Flow Us, Llc Dba Spx Valves & Controls), X-28526 (Spx Flow Us, Llc Dba Spx Valves & Controls), 11123 (Spx Flow Us, Llc Dba Spx Valves & Controls).

What NSN replaces 4820-01-218-3415?

There are 12 known substitutes for 4820-01-218-3415: 4820-00-036-1529, 3110-00-108-9168, 2520-00-354-3770 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of X-28526 PIECE 17?

Key specifications for X-28526 PIECE 17: Material: STEEL CORROSION RESISTING OVERALL. 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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