diff --git a/.version b/.version
index ba0a7191..a63cb35e 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-1.51.0
+1.52.0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7925ea29..0f307e32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.52.0] - 2022-06-03
+
+### Changed
+
+- HSM now uses the 'Class' from SLS
+
 ## [1.51.0] - 2022-05-10
 
 ### Changed
diff --git a/cmd/smd/components.go b/cmd/smd/components.go
index d86f7dba..b72f9bf9 100644
--- a/cmd/smd/components.go
+++ b/cmd/smd/components.go
@@ -1,6 +1,6 @@
 // MIT License
 //
-// (C) Copyright [2018-2021] Hewlett Packard Enterprise Development LP
+// (C) Copyright [2018-2022] Hewlett Packard Enterprise Development LP
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
 // copy of this software and associated documentation files (the "Software"),
@@ -103,7 +103,15 @@ func (s *SmD) DiscoverComponentChassis(chEP *rf.EpChassis) *base.Component {
 			comp.Class = base.ClassMountain.String()
 			// Just incase our redfish endpoint didn't exist when our child
 			// components were discovered, update them to be Mountain too.
-			children, err := s.db.GetComponentsQuery(nil, hmsds.FLTR_ID_ONLY, []string{comp.ID})
+			f := hmsds.ComponentFilter{
+				Type: []string{
+					base.NodeBMC.String(),
+					base.NodeEnclosure.String(),
+					base.Node.String(),
+					base.RouterBMC.String(),
+				},
+			}
+			children, err := s.db.GetComponentsQuery(&f, hmsds.FLTR_ID_ONLY, []string{comp.ID})
 			if err != nil {
 				s.LogAlways("DiscoverComponentChassis: Could not get child components for %s: %s", comp.ID, err)
 			} else {
@@ -174,9 +182,9 @@ func (s *SmD) DiscoverComponentSystem(sysEP *rf.EpSystem) *base.Component {
 	comp.Subtype = sysEP.Subtype
 	comp.Arch = sysEP.Arch
 	comp.NetType = sysEP.NetType
-	comp.Class = sysEP.DefaultClass
 
-	newNID, defRole, defSubRole := s.GetCompDefaults(comp.ID, sysEP.DefaultRole, sysEP.DefaultSubRole)
+	newNID, defRole, defSubRole, defClass := s.GetCompDefaults(comp.ID, sysEP.DefaultRole, sysEP.DefaultSubRole, sysEP.DefaultClass)
+	comp.Class = defClass
 	comp.Role = defRole
 	comp.SubRole = defSubRole
 	comp.NID = json.Number(strconv.FormatUint(newNID, 10))
@@ -328,11 +336,12 @@ func (s *SmD) DiscoverComponentOutlet(outEP *rf.EpOutlet) *base.Component {
 }
 
 // Get default NID and Role from SLS or the uploaded NodeMaps in priority order.
-func (s *SmD) GetCompDefaults(xname, defaultRole, defaultSubRole string) (uint64, string, string) {
+func (s *SmD) GetCompDefaults(xname, defaultRole, defaultSubRole, defaultClass string) (uint64, string, string, string) {
 	var (
 		nid     uint64
 		role    string
 		subRole string
+		class   string
 	)
 	if s.sls != nil {
 		nodeInfo, err := s.sls.GetNodeInfo(xname)
@@ -342,6 +351,7 @@ func (s *SmD) GetCompDefaults(xname, defaultRole, defaultSubRole string) (uint64
 			nid = uint64(nodeInfo.NID)
 			role = nodeInfo.Role
 			subRole = nodeInfo.SubRole
+			class = nodeInfo.Class
 		}
 	}
 	if nid == 0 || len(role) == 0 {
@@ -368,7 +378,10 @@ func (s *SmD) GetCompDefaults(xname, defaultRole, defaultSubRole string) (uint64
 		role = defaultRole
 		subRole = defaultSubRole
 	}
-	return nid, role, subRole
+	if class == "" {
+		class = defaultClass
+	}
+	return nid, role, subRole, class
 }
 
 // Get a bogus nid for an xname
diff --git a/cmd/smd/smd-api.go b/cmd/smd/smd-api.go
index b0ae48ad..37c1a0ff 100644
--- a/cmd/smd/smd-api.go
+++ b/cmd/smd/smd-api.go
@@ -506,8 +506,8 @@ func (s *SmD) doComponentsPost(w http.ResponseWriter, r *http.Request) {
 	// Get the nid and role defaults for all node types
 	for _, comp := range compsIn.Components {
 		if comp.Type == base.Node.String() {
-			if len(comp.Role) == 0 || len(comp.NID) == 0 {
-				newNID, defRole, defSubRole := s.GetCompDefaults(comp.ID, base.RoleCompute.String(), "")
+			if len(comp.Role) == 0 || len(comp.NID) == 0 || len(comp.Class) == 0 {
+				newNID, defRole, defSubRole, defClass := s.GetCompDefaults(comp.ID, base.RoleCompute.String(), "", "")
 				if len(comp.Role) == 0 {
 					comp.Role = defRole
 				}
@@ -517,6 +517,9 @@ func (s *SmD) doComponentsPost(w http.ResponseWriter, r *http.Request) {
 				if len(comp.NID) == 0 {
 					comp.NID = json.Number(strconv.FormatUint(newNID, 10))
 				}
+				if len(comp.Class) == 0 {
+					comp.Class = defClass
+				}
 			}
 		}
 	}
@@ -1048,8 +1051,8 @@ func (s *SmD) doComponentPut(w http.ResponseWriter, r *http.Request) {
 	}
 	// Get the nid and role defaults for all node types
 	if component.Type == base.Node.String() {
-		if len(component.Role) == 0 || len(component.NID) == 0 {
-			newNID, defRole, defSubRole := s.GetCompDefaults(component.ID, base.RoleCompute.String(), "")
+		if len(component.Role) == 0 || len(component.NID) == 0 || len(component.Class) == 0 {
+			newNID, defRole, defSubRole, defClass := s.GetCompDefaults(component.ID, base.RoleCompute.String(), "", "")
 			if len(component.Role) == 0 {
 				component.Role = defRole
 			}
@@ -1059,6 +1062,9 @@ func (s *SmD) doComponentPut(w http.ResponseWriter, r *http.Request) {
 			if len(component.NID) == 0 {
 				component.NID = json.Number(strconv.FormatUint(newNID, 10))
 			}
+			if len(component.Class) == 0 {
+				component.Class = defClass
+			}
 		}
 	}
 	changeMap, err := s.db.UpsertComponents([]*base.Component{component}, compIn.Force)
diff --git a/internal/slsapi/slsapi.go b/internal/slsapi/slsapi.go
index 550a7c5a..160f8bd6 100644
--- a/internal/slsapi/slsapi.go
+++ b/internal/slsapi/slsapi.go
@@ -1,6 +1,6 @@
 // MIT License
 //
-// (C) Copyright [2019-2021] Hewlett Packard Enterprise Development LP
+// (C) Copyright [2019-2022] Hewlett Packard Enterprise Development LP
 //
 // Permission is hereby granted, free of charge, to any person obtaining a
 // copy of this software and associated documentation files (the "Software"),
@@ -64,6 +64,13 @@ type ComptypeNode struct {
 	SubRole string `json:"SubRole"`
 }
 
+type NodeInfo struct {
+	NID     int    `json:"NID,omitempty"`
+	Role    string `json:"Role"`
+	SubRole string `json:"SubRole"`
+	Class   string `json:"Class"`
+}
+
 var serviceName string
 
 // Allocate and initialize new SLS struct.
@@ -125,38 +132,46 @@ func (sls *SLS) IsReady() (bool, error) {
 
 // Query SLS for node information. This just picks up the ExtraProperties
 // struct for nodes from SLS.
-func (sls *SLS) GetNodeInfo(id string) (ComptypeNode, error) {
+func (sls *SLS) GetNodeInfo(id string) (NodeInfo, error) {
 	var nh NodeHardware
 	// Validate inputs
 	if sls.Url == nil {
-		return ComptypeNode{}, fmt.Errorf("SLS struct has no URL")
+		return NodeInfo{}, fmt.Errorf("SLS struct has no URL")
 	}
 	if len(id) == 0 {
-		return ComptypeNode{}, fmt.Errorf("Id is missing")
+		return NodeInfo{}, fmt.Errorf("Id is missing")
 	}
 
 	// Construct a GET to /hardware/<xname> for SLS to get the node info
 	uri := sls.Url.String() + "/hardware/" + id
 	req, err := http.NewRequest(http.MethodGet, uri, nil)
 	if err != nil {
-		return ComptypeNode{}, err
+		return NodeInfo{}, err
 	}
 	body, err := sls.doRequest(req)
 	if err != nil {
-		return ComptypeNode{}, err
+		return NodeInfo{}, err
 	}
 
 	// SLS returns null if the component was not found
 	if body == nil {
-		return ComptypeNode{}, nil
+		return NodeInfo{}, nil
 	}
 
 	err = json.Unmarshal(body, &nh)
 	if err != nil {
-		return ComptypeNode{}, err
+		return NodeInfo{}, err
+	}
+
+	// Grab the fields we care about
+	nodeInfo := NodeInfo{
+		NID: nh.ExtraProperties.NID,
+		Role: nh.ExtraProperties.Role,
+		SubRole: nh.ExtraProperties.SubRole,
+		Class: nh.Class,
 	}
 
-	return nh.ExtraProperties, nil
+	return nodeInfo, nil
 }
 
 // doRequest sends a HTTP request to SLS