The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-349-7785, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 21 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-349-7785 |
| Primary Part Number | 2D3-1572 PIECE 55 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 88.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 9.000 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND 3RD LAYER MOLDED RUBBER, SYNTHETIC AND OUTER LAYER BRAIDED TEXTILE YARN |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.500 INCHES NOMINAL IN |
| Operating Pressure | 625.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Diameter | 1.125 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Hydrostatic Test Pressure | 1250.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 2500.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Series Designator | UN FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2D3-1572 PIECE 55 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2250606-20-20-20-88 | 5/9 Secondary reference U.S. Government activity |
| 2210606-20-20-20-88 | 5/9 Secondary reference U.S. Government activity |
| 2D3-1572 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
| 2250606-20-20-20-88 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-349-7785 is a Hose Assembly,nonmetallic, manufactured by Lake Shore Systems, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-349-7785 has 1 manufacturer part number on file: 2D3-1572 PIECE 55 (Lake Shore Systems, Inc.).
Key specifications for 2D3-1572 PIECE 55: Measuring Method and Length: 88.000 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 9.000 INCHES IN; Connection Style: SWIVEL NUT FLARE FIRST END. 21 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.
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.