FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as4730-01-182-4603 ·
4730011824603 ·
NIIN 011824603 ·
01-182-4603 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 803-1385884 PC1 1/4IN.IPS CRES · 803-1385884 · 810-1385884 PC 1 1/4 IN.IPS CRES
Nearby stock numbers← 4730-01-182-4602 Tailpiece, Union
·
4730-01-182-4604 Thread Piece, Union →
4730-01-182-4603 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Thread Piece,union — FSC 4730
Union End Thread Direction: RIGHT-HAND
Nominal Pipe Size Designation: 0.250 INCHES IN
End Connection Type: WELDED
Union End Thread Size: 1-3/16-12
Seat Type: STRAIGHT FACE
Surface Treatment: PASSIVATE
Union End Screw Thread Series Designator: UN
Identification
NSN: 4730-01-182-4603
NIIN: 011824603
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Thread Piece,union, cataloged under National Stock Number 4730-01-182-4603, 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 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL STEAM AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
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
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-182-4609803-1385884 PC 1 1/2 IN IPS CUNIPOSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-184-4759803-1385884 PC1 2IN IPS CRESPOSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-207-6092803-1385884 PC 6 1/2 IN SW CRESPOSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Admiral Valve Llc Dba Cpv Manufacturing
4730-01-394-5447B14521.001.150POSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4730-01-482-2668S2D10615-1POSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Vacco Industries
4730-01-628-2333803-1385884 PC8,3/8IN,CUNI 70/30POSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-690-0791803-1385884PC8,1INNICUALSTDTHDPOSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-690-48161385884PC6,1NPS(M15726)NOORINGPOSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
803-1385884 PC1 1/4IN.IPS CRES
3/2Design control — primary reference
U.S. Government activity
803-1385884
D/9Drawing number reference only
U.S. Government activity
810-1385884 PC 1 1/4 IN.IPS CRES
5/9Secondary reference
U.S. Government activity
Related Parts
4730-01-182-4609POSSIBLE MATCH
THREAD PIECE,UNION
803-1385884 PC 1 1/2 IN IPS CUNI
4730-01-184-4759POSSIBLE MATCH
THREAD PIECE,UNION
803-1385884 PC1 2IN IPS CRES
4730-01-207-6092POSSIBLE MATCH
TAILPIECE,UNION
803-1385884 PC 6 1/2 IN SW CRES
4730-01-394-5447POSSIBLE MATCH
TAILPIECE,UNION
B14521.001.150
4730-01-482-2668POSSIBLE MATCH
THREAD PIECE,UNION
S2D10615-1
4730-01-628-2333POSSIBLE MATCH
NUT,UNION
803-1385884 PC8,3/8IN,CUNI 70/30
4730-01-690-0791POSSIBLE MATCH
NUT,UNION
803-1385884PC8,1INNICUALSTDTHD
4730-01-690-4816POSSIBLE MATCH
TAILPIECE,UNION
1385884PC6,1NPS(M15726)NOORING
Frequently Asked Questions
What is NSN 4730-01-182-4603?
NSN 4730-01-182-4603 is a Thread Piece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-182-4603?
8 possible matches (shared part number, not a government interchangeability claim): 4730-01-182-4609, 4730-01-184-4759, 4730-01-207-6092. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-182-4603?
Key specifications for 4730-01-182-4603: Union End Thread Direction: RIGHT-HAND; Nominal Pipe Size Designation: 0.250 INCHES IN; End Connection Type: WELDED; Union End Thread Size: 1-3/16-12. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-182-4603 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.