PartsTable TECHNICAL DATA SHEET
NSN 4730-01-440-6541Government record, cited

Trap, Steam4730-01-440-6541

NSN 4730-01-440-6541 · NIIN 014406541 · Part number 800 38R-1/16 RED. ORIFICE
Armstrong International Inc Dba Armstrong Machine Works · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 03933
Government record, cited
NSN 4730-01-440-6541 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-440-6541. Manufacturer of record part number: 800 38R-1/16 RED. ORIFICE.
Also searched as  4730-01-440-6541 · 4730014406541 · NIIN 014406541 · 01-440-6541 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 03933 · 800 38R-1/16 RED. ORIFICE · C-3127
Nearby stock numbers  ·
Features
  • Trap,steam — FSC 4730
  • Design Type: BUCKET
  • Body Design: STRAIGHT PATTERN
  • 1 manufacturer part number on file
  • Manufacturer of record: Armstrong International Inc Dba Armstrong Machine Works
Identification
  • NSN: 4730-01-440-6541
  • NIIN: 014406541
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 800 38R-1/16 RED. ORIFICE
  • Manufacturer: Armstrong International Inc Dba Armstrong Machine Works
General Description

The Trap,steam, cataloged under National Stock Number 4730-01-440-6541, 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 Armstrong International Inc Dba Armstrong Machine Works. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-440-6541
Primary Part Number800 38R-1/16 RED. ORIFICE
Item NameTrap,steam
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerArmstrong International Inc Dba Armstrong Machine Works
StatusACTIVE
Design TypeBUCKET
Body DesignSTRAIGHT PATTERN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-440-6859800 38R-1/16 BUCKET POSSIBLE MATCH
BUCKET,STEAM TRAP
Possible match (shared part number)Armstrong International Inc Dba Armstrong Machine Works
4730-01-440-6869800 38R-1/16 PRESS.CHANGE ASSY. POSSIBLE MATCH
ASSY,PRESS CHANGE
Possible match (shared part number)Armstrong International Inc Dba Armstrong Machine Works
4730-01-440-6879800 38R-1/16 THIMBLE POSSIBLE MATCH
THIMBLE
Possible match (shared part number)Armstrong International Inc Dba Armstrong Machine Works
4730-01-440-688780038R-1/16 INLET TUBE POSSIBLE MATCH
TUBE,INLET
Possible match (shared part number)Armstrong International Inc Dba Armstrong Machine Works
Cross-Reference Index
Part NumberManufacturer
800 38R-1/16 RED. ORIFICE PRIMARY Armstrong International Inc Dba Armstrong Machine Works (USA)
Reference documents
ReferenceMeaning
C-3127 D/9 Drawing number reference only
Armstrong International Inc Dba Armstrong Machine Works
Related Parts
4730-01-440-6859POSSIBLE MATCH
BUCKET,STEAM TRAP
800 38R-1/16 BUCKET
4730-01-440-6869POSSIBLE MATCH
ASSY,PRESS CHANGE
800 38R-1/16 PRESS.CHANGE ASSY.
4730-01-440-6879POSSIBLE MATCH
THIMBLE
800 38R-1/16 THIMBLE
4730-01-440-6887POSSIBLE MATCH
TUBE,INLET
80038R-1/16 INLET TUBE

Frequently Asked Questions

What is NSN 4730-01-440-6541?

NSN 4730-01-440-6541 is a Trap,steam, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-440-6541?

NSN 4730-01-440-6541 has 1 manufacturer part number on file: 800 38R-1/16 RED. ORIFICE (Armstrong International Inc Dba Armstrong Machine Works).

What NSN replaces 4730-01-440-6541?

4 possible matches (shared part number, not a government interchangeability claim): 4730-01-440-6859, 4730-01-440-6869, 4730-01-440-6879. Verify interchangeability with system specifications before substitution.

What are the specifications of 800 38R-1/16 RED. ORIFICE?

Key specifications for 800 38R-1/16 RED. ORIFICE: Design Type: BUCKET; Body Design: STRAIGHT PATTERN; End Item Identification: SEALIFT CONVERSION SHIPS CLASS. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-440-6541 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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