PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25820Seat,valve

Eaton Aerospace Llc · NSN 4810-01-234-6059 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-234-6059 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-234-6059. Primary manufacturer part number: 25820.
Features
  • Seat,valve — FSC 4810
  • Seating Surface Shape: FLAT
  • Material Document and Classification: QQ-S-768 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: FAUCET
  • Material: STEEL COMP 440C OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 440c Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4810-01-234-6059, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4810-01-234-6059
Primary Part Number25820
Item NameSeat,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
Seating Surface ShapeFLAT
Material Document and ClassificationQQ-S-768 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorFAUCET
MaterialSTEEL COMP 440C OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-100-055025820 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
4720-00-540-19791540-20 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5330-00-641-648625820 INTERCHANGEABLE
Gasket
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
7050-00-986-2373 INTERCHANGEABLE
Idler,stacker
5325-01-369-2629 INTERCHANGEABLE
Grommet,nonmetallic
5120-01-565-1307 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
25820 PRIMARY Eaton Aerospace Llc (USA)
4810PL0654285 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
3110-00-100-0550INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
25820
4720-00-540-1979INTERCHANGEABLE
HOSE,NONMETALLIC
1540-20
5330-00-641-6486INTERCHANGEABLE
GASKET
25820
7050-00-986-2373INTERCHANGEABLE
IDLER,STACKER
5325-01-369-2629INTERCHANGEABLE
GROMMET,NONMETALLIC
5120-01-565-1307INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 4810-01-234-6059?

NSN 4810-01-234-6059 is a Seat,valve, manufactured by Eaton Aerospace Llc, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-234-6059?

NSN 4810-01-234-6059 has 2 cross-referenced part numbers: 25820 (Eaton Aerospace Llc), 4810PL0654285 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 4810-01-234-6059?

There are 6 known substitutes for 4810-01-234-6059: 3110-00-100-0550, 4720-00-540-1979, 5330-00-641-6486 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25820?

Key specifications for 25820: Seating Surface Shape: FLAT; Material Document and Classification: QQ-S-768 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: FAUCET; Material: STEEL COMP 440C OVERALL. 4 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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