PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HG272DInsert,engine Valve Seat

Wisconsin Motors, Llc · NSN 2805-00-424-2806 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-424-2806 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-424-2806. Primary manufacturer part number: HG272D.
Features
  • Insert,engine Valve Seat — FSC 2805
  • Style Designator: PLAIN
  • Material: STEEL BODY
  • Seat Angle in Deg: 0.750 NOMINAL
  • Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
  • Material: COBALT ALLOY FACE
  • Seating Surface Shape: ANGULAR
  • Body Outside Diameter: 1.627 INCHES MINIMUM AND 1.628 INCHES MAXIMUM IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Insert,engine Valve Seat, cataloged under National Stock Number 2805-00-424-2806, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-424-2806
Primary Part NumberHG272D
Item NameInsert,engine Valve Seat
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusACTIVE
Style DesignatorPLAIN
MaterialSTEEL BODY
Seat Angle in Deg0.750 NOMINAL
Hardness Rating24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
MaterialCOBALT ALLOY FACE
Seating Surface ShapeANGULAR
Body Outside Diameter1.627 INCHES MINIMUM AND 1.628 INCHES MAXIMUM IN
Body Inside Diameter1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-145-0230101-142S INTERCHANGEABLE
Screw,assembled Washer
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
HG272D PRIMARY Wisconsin Motors, Llc (USA)
71047 C1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
HG150D Wisconsin Motors, Llc (USA)
HG150D American-Marsh Pumps Inc Novo Pump and Engine Division (USA)
56312 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
5305-00-145-0230INTERCHANGEABLE
SCREW,ASSEMBLED WASHER
101-142S

Frequently Asked Questions

What is NSN 2805-00-424-2806?

NSN 2805-00-424-2806 is a Insert,engine Valve Seat, manufactured by Wisconsin Motors, Llc, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-424-2806?

NSN 2805-00-424-2806 has 5 cross-referenced part numbers: HG272D (Wisconsin Motors, Llc), 71047 C1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), HG150D (Wisconsin Motors, Llc), HG150D (American-Marsh Pumps Inc Novo Pump and Engine Division), 56312 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 2805-00-424-2806?

There is 1 known substitute for 2805-00-424-2806: 5305-00-145-0230. Verify interchangeability with system specifications before substitution.

What are the specifications of HG272D?

Key specifications for HG272D: Style Designator: PLAIN; Material: STEEL BODY; Seat Angle in Deg: 0.750 NOMINAL; Overall Height: 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com