4730-01-113-9334 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Tailpiece,union — FSC 4730
Nominal Pipe Size Designation: 0.500 INCHES IN
Flange Thickness: 0.312 INCHES NOMINAL IN
End Connection Type: BRAZED
Seat Type: GASKET
Material: COPPER ALLOY 903
Flange Outside Diameter: 1.625 INCHES NOMINAL IN
Working Pressure and Service Type: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
Identification
NSN: 4730-01-113-9334
NIIN: 011139334
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Tailpiece,union, cataloged under National Stock Number 4730-01-113-9334, 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 7 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 3000.0 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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-136-2047810-1385943ASSYHMOD 2INPOSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-149-669315-12-0006POSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-156-8230810-1385943 PC7POSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-183-1403810-1385943PC7 1/4 INCHPOSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-189-4795810-1385943 PC3AND8(1/4IPS)POSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-189-4797810-1385943 PC-3 3/8 IN IPSPOSSIBLE MATCH
TAILPIECE,UNION
Possible match (shared part number)Naval Ship Systems Command
4730-01-189-4798810-1385943 PC-2 1/4 IN IPSPOSSIBLE MATCH
THREAD PIECE,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
810-1385943 PIECE 3 1/2IPS
3/2Design control — primary reference
U.S. Government activity
15-12-2144
3/2Design control — primary reference
U.S. Government activity
810-1385943
D/9Drawing number reference only
U.S. Government activity
516-4789183ITEMF10
5/2Secondary reference
U.S. Government activity
516-4789183
D/9Drawing number reference only
U.S. Government activity
Related Parts
4730-01-136-2047POSSIBLE MATCH
TAILPIECE,UNION
810-1385943ASSYHMOD 2IN
4730-01-149-6693POSSIBLE MATCH
NUT,UNION
15-12-0006
4730-01-156-8230POSSIBLE MATCH
NUT,UNION
810-1385943 PC7
4730-01-183-1403POSSIBLE MATCH
NUT,UNION
810-1385943PC7 1/4 INCH
4730-01-189-4795POSSIBLE MATCH
TAILPIECE,UNION
810-1385943 PC3AND8(1/4IPS)
4730-01-189-4797POSSIBLE MATCH
TAILPIECE,UNION
810-1385943 PC-3 3/8 IN IPS
4730-01-189-4798POSSIBLE MATCH
THREAD PIECE,UNION
810-1385943 PC-2 1/4 IN IPS
Frequently Asked Questions
What is NSN 4730-01-113-9334?
NSN 4730-01-113-9334 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-113-9334?
7 possible matches (shared part number, not a government interchangeability claim): 4730-01-136-2047, 4730-01-149-6693, 4730-01-156-8230. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-113-9334?
Key specifications for 4730-01-113-9334: Nominal Pipe Size Designation: 0.500 INCHES IN; Flange Thickness: 0.312 INCHES NOMINAL IN; End Connection Type: BRAZED; Overall Length: 1.312 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-113-9334 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.