Plumbing & PVF · 18 attributes
Pipe hanger and support product attributes
Pipe hanger attributes to capture: MSS SP-58 type, size basis (IPS or CTS), rod size, recommended load, finish, and UL or FM listing scope by size.
Pipe hangers are sold by figure number, and the figure hides most of what a buyer needs. A clevis for 2 in steel pipe and one for 2 in copper tube share a nominal size but not an outside diameter, so the size basis has to be recorded or the wrong part ships. Rod size, rod take-out and recommended load sit in a table in the catalog, one row per size, and are easy to lose during import.
Finish drives both price and suitability. Plain, electrogalvanized, hot-dip galvanized, stainless and coated versions of the same figure are separate SKUs with different temperature limits and environments. Copper systems usually need a coated or lined hanger to avoid contact between dissimilar metals, and insulated lines need a hanger sized over the insulation or paired with a shield.
Fire sprinkler work adds listings that rarely apply to a whole figure. UL and FM approvals are typically granted for a range of sizes and finishes, so a figure-level yes misleads. Storing the listing scope per SKU, with the MSS SP-58 type and the manufacturer's load and temperature data, gives estimators and inspectors something they can check.
The pipe hangers & supports attribute template
18 candidate fields in 5 groups, ordered the way a record gets built: identify the item, capture its specifications, then record fit and the evidence behind any claim. 11 are marked Core: without them the item cannot be identified or filtered. Example values show the expected format only; they do not describe a real SKU.
Identity
Which exact item, variant and pack this record describes.
Check before use: Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking.
| Attribute | Type | Priority | Example format |
|---|---|---|---|
Manufacturer Figure Number manufacturer_figure_number | Identifier | Core | Fig. 300 |
Manufacturer Part Number (MPN) manufacturer_part_number_mpn | Identifier | Core | HGR-300-020-HDG |
GTIN (UPC-A) gtin_upc_a | Identifier | Channel / evidence | 614141240036 |
Technical specifications
Measured or rated values that must travel with their unit and test conditions.
Check before use: Store the number and unit separately. Convert only when the source unit and test conditions are known.
| Attribute | Type | Priority | Example format |
|---|---|---|---|
Nominal Pipe / Tube Size nominal_pipe_tube_size | Controlled list · in | Core | NPS 2 (DN 50) |
Pipe / Tube OD pipe_tube_od | Number · in | Core | 2.375 |
Maximum Recommended Load maximum_recommended_load | Number · lb | Core | 610 |
Maximum Service Temperature maximum_service_temperature | Number · °F | Buyer decision | 450 |
Rod Take-Out (TO) rod_take_out_to | Number · in | Buyer decision | 2-5/8 |
Selection attributes
The type, material and option choices buyers filter and compare on.
Check before use: Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to.
| Attribute | Type | Priority | Example format |
|---|---|---|---|
Product Type product_type | Controlled list | Core | Adjustable Clevis Hanger |
MSS SP-58 Type mss_sp_58_type | Controlled list | Core | Type 1 (Adjustable Steel Clevis Hanger) |
Material material | Controlled list | Core | Carbon steel (ASTM A36) |
Finish / Coating finish_coating | Controlled list | Core | Hot-dip galvanized (ASTM A123) |
Pipe Contact Liner / Dielectric Barrier pipe_contact_liner_dielectric_barrier | Controlled list | Buyer decision | None (uncoated) |
Fit & compatibility
What the item mounts to, mates with, replaces or works alongside.
Check before use: Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so.
| Attribute | Type | Priority | Example format |
|---|---|---|---|
Size Basis size_basis | Controlled list | Core | IPS (steel pipe) |
Hanger Rod Size hanger_rod_size | Controlled list | Core | 3/8 in-16 UNC |
Fits Insulation Thickness fits_insulation_thickness | Number · in | Buyer decision | 1-1/2 |
Evidence & compliance
Listings, standards, classifications and origin claims that need a document behind them.
Check before use: Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU.
| Attribute | Type | Priority | Example format |
|---|---|---|---|
UL / FM Listing and Scope ul_fm_listing_and_scope | Text | Channel / evidence | UL Listed NPS 1/2-8; FM Approved NPS 3/4-8 |
Country of Origin country_of_origin | Controlled list | Channel / evidence | United States |
Normalize supplier values
The same value arrives in many spellings. Map each raw string to one governed value, and keep the raw text beside it so a reviewer can see what the supplier actually wrote.
Finish / Coating
Zinc PlatedElectro-GalvanizedEGElectro GalvZPZinc Electroplated Normalized to Electrogalvanized (ASTM B633)
Nominal Size + Size Basis
1/2"1/2 IPSNPS 1/2DN151/2 in steel pipe0.840 OD Normalized to NPS 1/2 (IPS, 0.840 in OD)
Standard Type Number
Type 1MSS-58 TY1SP58 Type 1WW-H-171E Ty 1A-A-1192A Type 1Adj. Clevis Normalized to MSS SP-58 Type 1
Often missing from supplier files
These fields are commonly absent from price lists and basic feeds, even though the information usually exists in a datasheet, label or installation manual. Treat an empty value as a request for evidence, not as permission to fill it from a similar model.
- Size Basis (IPS vs CTS vs ductile iron)
- UL / FM Listing Scope (sizes and finishes)
- Maximum Service Temperature
- Dielectric Barrier / Copper Compatibility
- Fits Insulation Thickness
Questions the record must answer
Buyers and counter-sales reps choosing pipe hangers & supports ask questions like these. Each one needs a specific field, sourced for the exact variant.
- Is this hanger sized for copper tube or for steel pipe of the same nominal size?
- What rod diameter do I need to hang it?
- Will it clear 1-1/2 inches of pipe insulation, or do I need a shield?
- Is this size and finish covered by the UL or FM listing for sprinkler work?
From supplier file to record
- Resolve identity first. Link the supplier SKU, manufacturer part number and packaging identifiers without merging distinct variants or pack sizes.
- Extract with the source attached. Pull values from rows, tables and datasheets, keeping the raw text, unit and page or row reference.
- Map to your classification. Assign the ETIM, ECLASS, UNSPSC or internal class your company licenses, and keep the supplier's original terms.
- Review, sync and watch. Hold conflicts and safety-related values for a category expert, write approved values to ERP or PIM, and recheck when the supplier sends a new file.
For the full method, see how to build a category attribute template and the category catalog gap audit.
FAQ
Why do suppliers quote different maximum temperatures for the same galvanized hanger?
The limit can come from the base steel, the zinc coating, a plastic liner or a cushion insert, and manufacturers do not all publish the governing component. One catalog may quote the steel's limit while another quotes the coating's. Store maximum service temperature per SKU with its source document, and add a note field for the governing component when the manufacturer states it. Do not copy one value across every finish in a figure family.
Is an MSS SP-58 Type 1 the same as a federal specification Type 1?
Largely, yes. The superseded federal specification WW-H-171E and its commercial item description replacement, A-A-1192A, used a type numbering closely aligned with the MSS hanger type chart, which is now maintained in MSS SP-58. Because older submittals still cite the federal documents, store the standard name and type number together as one controlled value, for example MSS SP-58 Type 1, and keep the federal designation as an alias rather than a separate classification.
Do hangers for copper tube need their own SKUs?
Yes. Copper tube size is based on a different outside diameter than iron pipe size at the same nominal size, so a hanger sized for one will not fit the other properly. Copper hangers also tend to carry a coating or liner that isolates the tube from steel. Give each its own SKU, record the size basis (IPS, CTS or another system) as a controlled field, and store the actual pipe or tube OD as a number so fit can be checked.
Can a UL or FM listing be set once at the figure level?
It is safer not to. Listings for sprinkler hangers are usually limited to specific size ranges, finishes or installation conditions, and the UL and FM scopes for the same figure can differ. Store the listing as evidence on each SKU, with the listing body, file or approval reference and the date it was verified. Rely on the current listing directory and the manufacturer's documentation for scope rather than a catalog line that says listed.
Claro
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Claro runs this automatically: resolve identity, fill missing attributes, validate updates, and write clean records back into your PIM/ERP. Upload a sample supplier file for a free catalog audit.
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