PartsTable TECHNICAL DATA SHEET
NSN 4730-01-733-2138Government record, cited

Steam Trap Element4730-01-733-2138

NSN 4730-01-733-2138 · NIIN 017332138 · Part number M4544-3172
Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 0ASY6
Government record, cited
NSN 4730-01-733-2138 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-733-2138. Manufacturer of record part number: M4544-3172.
Also searched as  4730-01-733-2138 · 4730017332138 · NIIN 017332138 · 01-733-2138 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 0ASY6 · M4544-3172
Nearby stock numbers  ·
Features
  • Steam Trap Element — FSC 4730
  • 1 manufacturer part number on file
  • Manufacturer of record: Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
Identification
  • NSN: 4730-01-733-2138
  • NIIN: 017332138
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: M4544-3172
  • Manufacturer: Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
General Description

The Steam Trap Element, cataloged under National Stock Number 4730-01-733-2138, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-733-2138
Primary Part NumberM4544-3172
Item NameSteam Trap Element
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerDerbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
M4544-3172 PRIMARY Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA)
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE

Frequently Asked Questions

What is NSN 4730-01-733-2138?

NSN 4730-01-733-2138 is a Steam Trap Element, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-733-2138?

NSN 4730-01-733-2138 has 1 manufacturer part number on file: M4544-3172 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).

What are the specifications of M4544-3172?

Key specifications for M4544-3172: Overall Length: 0.500 INCHES NOMINAL IN; Special Features: IPS ANGLE, 0.063 INCHES IN; Part Name Assigned by Controlling Agency: STEAM TRAP, BRONZE 0.5 IN, IPS ANGLE, 0.063 IN; End Item Identification: STEAM TRAP. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-733-2138 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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