PartsTable TECHNICAL DATA SHEET
Download PDF
NSN 4730-01-121-9798Government record, cited
Home › MRO › Pipe, Tubing, Hose, and Fittings › 4730-01-121-9798

Adapter, Straight, Pipe to Hose4730-01-121-9798

NSN 4730-01-121-9798 · NIIN 011219798
FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4730-01-121-9798 · 4730011219798 · NIIN 011219798 · 01-121-9798 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · 262100203-0023 · 506-4676546 · 2621-002-03 ASSY 23 · 506-4676546 F21 · 2621-002-03ASSY23
Nearby stock numbers  ·
NPT FIRST END HOSE FITTING
4730-01-121-9798 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Adapter,straight,pipe to Hose — FSC 4730
  • Connection Style: PLAIN (HOSE) SECOND END
  • Connection Style: PLAIN (PIPE) FIRST END
  • Connection Type: THREADED EXTERNAL HOSE SECOND END
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Thread Size: 1.500 INCHES FIRST END IN
  • Thread Quantity Per Inch: 11 SECOND END
Identification
  • NSN: 4730-01-121-9798
  • NIIN: 011219798
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description

The Adapter,straight,pipe to Hose, cataloged under National Stock Number 4730-01-121-9798, 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8 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-121-9798
Item NameAdapter,straight,pipe to Hose
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
StatusACTIVE
Connection StylePLAIN (HOSE) SECOND END
Connection StylePLAIN (PIPE) FIRST END
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size1.500 INCHES FIRST END IN
Thread Quantity Per Inch11 SECOND END
Thread Series DesignatorNPT FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-143-14292621-228-01PC152G POSSIBLE MATCH
FLANGE,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-145-76382621-002-03ASSY17 POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-155-238315-97-0195 POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4210-01-192-04102621-002-03ASSY8 POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE,FI
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-197-8599262100203-0035 POSSIBLE MATCH
ADAPTER AND CAP ASSEMBLY
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-686-17482621-002-03ASSY15 POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
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
ReferenceMeaning
262100203-0023 5/9 Secondary reference
U.S. Government activity
506-4676546 D/9 Drawing number reference only
U.S. Government activity
2621-002-03 ASSY 23 5/9 Secondary reference
Nucraloy Corp
506-4676546 F21 5/2 Secondary reference
U.S. Government activity
2621-002-03ASSY23 3/2 Design control — primary reference
U.S. Government activity
2621-002-03 D/9 Drawing number reference only
U.S. Government activity
2621-002-03 SHEET 23 5/2 Secondary reference
U.S. Government activity
Related Parts
4730-01-143-1429POSSIBLE MATCH
FLANGE,PIPE
2621-228-01PC152G
4730-01-145-7638POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
2621-002-03ASSY17
4730-01-155-2383POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
15-97-0195
4210-01-192-0410POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE,FI
2621-002-03ASSY8
4730-01-197-8599POSSIBLE MATCH
ADAPTER AND CAP ASSEMBLY
262100203-0035
4730-01-686-1748POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
2621-002-03ASSY15

Frequently Asked Questions

What is NSN 4730-01-121-9798?

NSN 4730-01-121-9798 is a Adapter,straight,pipe to Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What NSN replaces 4730-01-121-9798?

6 possible matches (shared part number, not a government interchangeability claim): 4730-01-143-1429, 4730-01-145-7638, 4730-01-155-2383. Verify interchangeability with system specifications before substitution.

What are the specifications of 4730-01-121-9798?

Key specifications for 4730-01-121-9798: Connection Style: PLAIN (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Connection Type: THREADED EXTERNAL HOSE SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END. 8 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-121-9798 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.

PartsTable — the parts reference. Every fact cited to its source.
partstable.com/parts/4730-01-121-9798
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com
partstable.com · © 2026 PartsTable. Data for reference only.
Home · MRO Catalog · Pipe, Tubing, Hose, and Fittings