PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

80171-1Seat,valve

Danfoss Inc · NSN 4820-01-374-2800 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-374-2800 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-374-2800. Primary manufacturer part number: 80171-1.
Features
  • Seat,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Danfoss Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-374-2800, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Danfoss Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersDanfoss Inc (CAGE 24976); Danfoss Fluid Power Inc Racine Opn (CAGE 64294)
Technical Specifications
ParameterValue
NSN4820-01-374-2800
Primary Part Number80171-1
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDanfoss Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-01-012-6840741389 INTERCHANGEABLE
Bearing,ball,annular
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5305-01-590-22828017-11 INTERCHANGEABLE
Filling,screw
Howell Laboratories Inc Dba Howell Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
80171-1 PRIMARY Danfoss Inc (USA)
80171-1 Danfoss Fluid Power Inc Racine Opn (USA)
Related Parts
3110-01-012-6840INTERCHANGEABLE
BEARING,BALL,ANNULAR
741389
5305-01-590-2282INTERCHANGEABLE
FILLING,SCREW
8017-11

Frequently Asked Questions

What is NSN 4820-01-374-2800?

NSN 4820-01-374-2800 is a Seat,valve, manufactured by Danfoss Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-374-2800?

NSN 4820-01-374-2800 has 2 cross-referenced part numbers: 80171-1 (Danfoss Inc), 80171-1 (Danfoss Fluid Power Inc Racine Opn).

What NSN replaces 4820-01-374-2800?

There are 2 known substitutes for 4820-01-374-2800: 3110-01-012-6840, 5305-01-590-2282. Verify interchangeability with system specifications before substitution.

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