NMFC 50970 - Conduits, Pipe & Fittings | Density Class

Article ID

50970

Mixed conduits, hose, drains, fittings covered

Freight Group

CONDUITS, OTHER THAN EARTHEN, GROUP

Non-earthen conduit and ventilation hardware

Class Range

N/A 0 classification

Density-based per NMFC Item 170

Hazardous

Not regulated as hazardous material

Classification Details

NMFC	Description	Class
50970.00	Conduits, Pipe, Smokestacks, Tubing or Fittings, other than clay, concrete or earthen, viz.: Boxes, Enclosures, Manholes or Vaults, underground utility service, reinforced plastic mortar, in packages; Boxes, roadway, stopcock, valve or water meter service, iron or iron with brass, bronze or copper fittings, in boxes; Chambers, plenum, glass fiber, with binder, with covering of other materials, with metal mounting brackets attached, in boxes; Clamps or Couplings, pipe, band type, sheet steel, with or without gaskets, in boxes; Clamps, water meter pipe, in boxes; Coils, pipe, NOI, in boxes or crates; Conduit, electrical, flexible, spirally formed from strip metal, with or without packing or plastic coating, in packages; Conduit or Loom, woven paper, rayon or cotton, with or without asphaltum impregnation or lacquer coating, in boxes; Connections, pipe, lead and brass combined; with or without stopcock attached, in boxes; Couplings, conduit or pipe, cement containing asbestos fiber, in boxes; Draft Regulators, stove or furnace, sheet steel, in sheet steel rings or frames, with or without attached stove pipe collars, in boxes; Drains, roof, metal, with or without components or fittings of same or other materials, in boxes; Floor Drains, metal, in boxes; Hose, NOI, or Tubing, flexible, with or without fittings, in packages; Hose, water discharge, plastic, collapsed upon itself, reinforced, without fittings, in packages; Strainers, pipeline, brass, bronze or copper body, in boxes; Strainers, pipeline, iron or steel body, in packages; Supports, iron or steel, consisting of anchors, arches, brackets, chairs, rests, rolls or sleeves, in packages; Take-offs, air distribution or ventilation, steel, in boxes; Tee Joints or Stove or Furnace Pipe, with draft regulators attached, in boxes; Thimbles, stove pipe, NOI, in boxes; Traps, drain or sink (Sewer Gas Traps), in boxes; Traps or Interceptors, grease, NOI, see Note, item 50971, in packages; Subject to Item 170 and having a density in pounds per cubic foot of: Show more

Notes

Note 50971: NOTE-Applies on devices designed to intercept greases, fats and oils before they enter a wastewater disposal system.

How to Determine Your Class

To find the correct freight class for your shipment:

Verify density before booking: weigh and measure each handling unit and compute PCF (e.g., 300 lb on 48x40x28 in ≈ 9.6 PCF) to assign the correct NMFC 50970 class.
Package by type: crate heavy iron supports, drains, or traps; coil flexible conduit or hose and band to a pallet; cap pipe ends and protect threads from impact.
Separate mixed materials: keep fiberglass plenums, plastic discharge hose, and metal couplings in distinct cartons with itemized weights to simplify density audits and BOL accuracy.
Check exceptions and packaging: grease interceptors move under item 50971; use boxes, crates, or packages as specified to avoid re-bills for improper packing under Item 170.

Note: All classifications are subject to Item 170. Verify with official NMFC publications for the most current requirements.

Business Value

Accurate density under Item 170 minimizes reclass and rebill charges, stabilizing LTL quotes and reducing post-shipment surprises.
Optimized packing (collapsed discharge hose, tight conduit coils) lowers cube, potentially improving class and cutting freight rates.
Crating delicate or bracketed plenum chambers reduces OS&D risk and claims; clear labeling speeds cross-dock handling.
One NMFC for varied utility hardware streamlines BOLs and rating for contractors, HVAC suppliers, and utility distributors shipping mixed loads.

Previous in Group ← NMFC 50965 Flexible Steel Control Conduits – NMFC 5... Next in Group NMFC 51015 → Metal Culverts, Sections, or Fittings

Weight (lbs)

Dimensions (inches)