4730-01-307-0124 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Elbow,flange — FSC 4730
Flange Shape: ROUND WITH HOLES ALL ENDS
Flow Angle: 90.0 DEGREES
Flange Face Design: PLAIN ALL ENDS
Bolt Circle Nominal Diameter: 7.812 INCHES ALL ENDS IN
Connection Type: FLANGE ALL ENDS
Material Document and Classification: QQ-C-390-ALLOY-D5-TYPE-1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bolt Hole Nominal Diameter: 0.688 INCHES ALL ENDS IN
Identification
NSN: 4730-01-307-0124
NIIN: 013070124
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Elbow,flange, cataloged under National Stock Number 4730-01-307-0124, 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 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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-ALLOY-D5-TYPE-1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bolt Hole Nominal Diameter
0.688 INCHES ALL ENDS IN
Operating Pressure
250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Leg Length
6.380 INCHES NOMINAL ALL ENDS IN
Nominal Outside Diameter
9.065 INCHES ALL ENDS IN
Bolt Hole Quantity
10 ALL ENDS
Material
COPPER ALLOY OVERALL
Nominal Thickness
1.190 INCHES ALL ENDS 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
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-317-88902621-166-02 PIECE 167POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-318-28462621-166-02 PC 29POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-40062621-166-02 PIECE 97POSSIBLE MATCH
ELBOW,FLANGE
Possible match (shared part number)Derbyshire Machine & Tool Co
4730-01-325-40092621-166-02 PIECE 31POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-40102621-166-02 PIECE R31POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-325-90202621-166-02 PIECE 202MODPOSSIBLE MATCH
ELBOW,FLANGE TO PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21372621-166-02 PC-140POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21382621-166-02 PC-142POSSIBLE MATCH
ELBOW,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21632621-166-02 ASSY-182POSSIBLE MATCH
ELBOW,PIPE TO BOSS
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
2621-166-02
D/9Drawing number reference only
U.S. Government activity
2621-166-04 PIE
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
2621-166-02 PIECE 194
3/2Design control — primary reference
U.S. Government activity
Related Parts
4730-01-317-8890POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PIECE 167
4730-01-318-2846POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PC 29
4730-01-325-4006POSSIBLE MATCH
ELBOW,FLANGE
2621-166-02 PIECE 97
4730-01-325-4009POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE 31
4730-01-325-4010POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE R31
4730-01-325-9020POSSIBLE MATCH
ELBOW,FLANGE TO PIPE
2621-166-02 PIECE 202MOD
4730-01-329-2137POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PC-140
4730-01-329-2138POSSIBLE MATCH
ELBOW,PIPE
2621-166-02 PC-142
4730-01-329-2163POSSIBLE MATCH
ELBOW,PIPE TO BOSS
2621-166-02 ASSY-182
Frequently Asked Questions
What is NSN 4730-01-307-0124?
NSN 4730-01-307-0124 is a Elbow,flange, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-307-0124?
9 possible matches (shared part number, not a government interchangeability claim): 4730-01-317-8890, 4730-01-318-2846, 4730-01-325-4006. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-307-0124?
Key specifications for 4730-01-307-0124: Flange Shape: ROUND WITH HOLES ALL ENDS; Flow Angle: 90.0 DEGREES; Flange Face Design: PLAIN ALL ENDS; Bolt Circle Nominal Diameter: 7.812 INCHES ALL ENDS IN. 13 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-307-0124 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.