The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-418-4255, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Cascade Corp. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-418-4255 |
| Primary Part Number | 3550-3155 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Cascade Corp |
| Status | ACTIVE |
| Measuring Method and Length | 125.375 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 2.250 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED POLYURETHANE |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.640 INCHES NOMINAL IN |
| Operating Pressure | 2750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Diameter | 0.375 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Hydrostatic Test Pressure | 5500.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 11000.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | ABRASION RESISTANT |
| Thread Series Designator | UNF 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 |
|---|---|
| 3550-3155 | Cascade Corp (USA) |
| Reference | Meaning |
|---|---|
| 5600606-6-6-6-125.375 | 3/2 Design control — primary reference U.S. Government activity |
| ACTUAL MANUFACT | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
NSN 4720-01-418-4255 is a Hose Assembly,nonmetallic, manufactured by Cascade Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-418-4255 has 1 manufacturer part number on file: 3550-3155 (Cascade Corp).
Key specifications for 3550-3155: Measuring Method and Length: 125.375 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 160.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 2.250 INCHES IN; Connection Style: SWIVEL NUT FLARE FIRST END. 20 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.