4730-01-305-5783 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Elbow,pipe — FSC 4730
Flow Angle: 90.0 DEGREES
Nominal Pipe Size Accommodated: 2.000 INCHES FIRST END IN
Connection Type: UNTHREADED INTERNAL PIPE FIRST END
Connection Type: FLANGE SECOND END
Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material: COPPER ALLOY OVERALL
Identification
NSN: 4730-01-305-5783
NIIN: 013055783
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Elbow,pipe, cataloged under National Stock Number 4730-01-305-5783, 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7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Operating Pressure
150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material
COPPER ALLOY OVERALL
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-305-57842621-166-01 PIECE 211 MODPOSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-305-57852621-166-01- PIECE 6 MODPOSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Triumph Manufacturing Company, Inc.
4730-01-305-57864685606-OF15POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4720-01-305-98092621-2503-12101POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4720-01-305-98102621-2503-03-12104POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-305-98584685606 ITEM F2POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Naval Ship Systems Command
4730-01-305-9859218017008POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-305-98604685606-OF37POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-305-986113-00-0163POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
4685606
D/9Drawing number reference only
U.S. Government activity
2621-166-03 PIECE 81
3/2Design control — primary reference
U.S. Government activity
2621-166-03
D/9Drawing number reference only
U.S. Government activity
704-4685606 ITEM F3
5/2Secondary reference
U.S. Government activity
Related Parts
4730-01-305-5784POSSIBLE MATCH
ELBOW,PIPE
2621-166-01 PIECE 211 MOD
4730-01-305-5785POSSIBLE MATCH
ELBOW,PIPE
2621-166-01- PIECE 6 MOD
4730-01-305-5786POSSIBLE MATCH
ELBOW,PIPE
4685606-OF15
4720-01-305-9809POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
2621-2503-12101
4720-01-305-9810POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
2621-2503-03-12104
4730-01-305-9858POSSIBLE MATCH
FLANGE,PIPE
4685606 ITEM F2
4730-01-305-9859POSSIBLE MATCH
FLANGE,PIPE
218017008
4730-01-305-9860POSSIBLE MATCH
FLANGE,PIPE
4685606-OF37
4730-01-305-9861POSSIBLE MATCH
FLANGE,PIPE
13-00-0163
Frequently Asked Questions
What is NSN 4730-01-305-5783?
NSN 4730-01-305-5783 is a Elbow,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-305-5783?
9 possible matches (shared part number, not a government interchangeability claim): 4730-01-305-5784, 4730-01-305-5785, 4730-01-305-5786. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-305-5783?
Key specifications for 4730-01-305-5783: Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 2.000 INCHES FIRST END IN; Connection Type: UNTHREADED INTERNAL PIPE FIRST END; Connection Type: FLANGE SECOND END. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-305-5783 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.