The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-139-1673, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-139-1673 |
| Primary Part Number | 87917-3250 ITEM20 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST END |
| Nondefinitive Spec/std Data | 1 GRADE AND 2 CLASS |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Measuring Method and Length | 120.000 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Specification/standard Data | 81348-ZZ-H-601 GOVERNMENT SPECIFICATION |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED FABRIC AND 2ND LAYER BRAIDED FABRIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC |
| Inside Surface Condition | SMOOTH |
| Thread Series Designator | NPSH FIRST END |
| Thread Class | 3B FIRST END |
| Media for Which Designed | WATER SINGLE RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 87917-3250 ITEM20 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 608-4685638 ITEM20 PRIMARY | Naval Ship Systems Command (USA) |
| 4677473-000M-M PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| ZZ-H-601 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| WW-C-624E | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 608-4685636 ITEM 20 | Naval Ship Systems Command (USA) |
| 608-4685638 | Naval Ship Systems Command (USA) |
NSN 4720-01-139-1673 is a Hose Assembly,nonmetallic, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-01-139-1673 has 7 cross-referenced part numbers: 87917-3250 ITEM20 (Electric Boat Corporation Div General Dynamics Electric Boat), 608-4685638 ITEM20 (Naval Ship Systems Command), 4677473-000M-M (Electric Boat Corporation Div General Dynamics Electric Boat), ZZ-H-601 (Federal Specifications Promulgated by General Services Administration Washington DC), WW-C-624E (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.
There are 12 known substitutes for 4720-01-139-1673: 4720-01-091-1377, 4720-01-091-2822, 4720-01-139-1668 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 87917-3250 ITEM20: Connection Style: SWIVEL NUT, GASKET SEAL FIRST END; Nondefinitive Spec/std Data: 1 GRADE AND 2 CLASS; Connection Type: THREADED INTERNAL PIPE FIRST END; Nominal Thread Size: 0.500 INCHES FIRST END IN. 16 total characteristics are documented in the Federal Logistics Information System.