4730-00-603-0109 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Spool Piece — FSC 4730
Nominal Pipe Size Designation: 12.000 INCHES IN
End Thickness: 1.250 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
End Bolt Hole Diameter: 0.875 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
End Style: RAISED FACE, BOSSED NECK
End Bolt Hole Quantity: 16 AND 12
End Bolt Circle Diameter: 17.000 INCHES MINIMUM AND 17.750 INCHES MAXIMUM IN
Material: STEEL
Identification
NSN: 4730-00-603-0109
NIIN: 006030109
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Spool Piece, cataloged under National Stock Number 4730-00-603-0109, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
17.000 INCHES MINIMUM AND 17.750 INCHES MAXIMUM IN
Material
STEEL
End Outside Diameter
19.000 INCHES MINIMUM AND 20.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
D8733-3A12X12IN
3/2Design control — primary reference
U.S. Government activity
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 4730-00-603-0109?
NSN 4730-00-603-0109 is a Spool Piece, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-00-603-0109?
Key specifications for 4730-00-603-0109: Nominal Pipe Size Designation: 12.000 INCHES IN; End Thickness: 1.250 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; End Bolt Hole Diameter: 0.875 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN; End Style: RAISED FACE, BOSSED NECK. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-603-0109 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.