The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-481-3305, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Smiths Tubular Systems-Laconia, Inc.. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-481-3305 |
| Primary Part Number | 115914-4 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Smiths Tubular Systems-Laconia, Inc. |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES SECOND END |
| Measuring Method and Length | 29.750 INCHES MINIMUM WORKING AND 30.250 INCHES MAXIMUM WORKING IN |
| Connection Style | PLAIN SWIVEL SECOND END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| Flange Outside Diameter | 3.094 INCHES NOMINAL SECOND END IN |
| End Connection Design | ELBOW SECOND END |
| End Connection Design | STRAIGHT FIRST END |
| Connection Type | PLAIN FACE FLANGE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Bolt Hole Diameter | 0.266 INCHES NOMINAL SECOND END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.800 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.875 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Diameter | 1.500 INCHES NOMINAL IN |
| Inside Surface Condition | CONVOLUTED |
| Bolt Hole Quantity | 4 SECOND END |
| Bolt Circle Diameter | 2.375 INCHES NOMINAL SECOND END IN |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Flange Style | ROUND W / BOLT HOLES SECOND END |
| End Flange Construction | SOLID SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 115914-4 PRIMARY | Smiths Tubular Systems-Laconia, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 9776520 | D/9 Drawing number reference only U.S. Government activity |
| 9776520-70 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4720-01-481-3305 is a Hose Assembly,nonmetallic, manufactured by Smiths Tubular Systems-Laconia, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-481-3305 has 1 manufacturer part number on file: 115914-4 (Smiths Tubular Systems-Laconia, Inc.).
Key specifications for 115914-4: Flow Angle: 90.0 DEGREES SECOND END; Measuring Method and Length: 29.750 INCHES MINIMUM WORKING AND 30.250 INCHES MAXIMUM WORKING IN; Connection Style: PLAIN SWIVEL SECOND END; Connection Style: SWIVEL NUT FLARE FIRST END. 24 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4720-01-481-3305 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.