The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-121-7474, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 26 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-00-121-7474 |
| Primary Part Number | AA59566-BA2040240 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Measuring Method and Length | 240.000 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Connection Style | PLAIN SECOND END |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST END |
| Vacuum in Torr | 254.0 |
| Layer Composition and Location | OUTER LAYER MOLDED RUBBER |
| Connection Type | THREADED INTERNAL HOSE FIRST END |
| Connection Type | THREADED EXTERNAL HOSE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 4.625 INCHES NOMINAL IN |
| End Fitting Component and Material | COMPLETE FITTING COPPER ALLOY ALL ENDS |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 4.000 INCHES SECOND END IN |
| Nominal Thread Size | 4.000 INCHES FIRST END IN |
| Specification/standard Data | 81348-ZZ-H-561 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 2 CLASS AND B GRADE AND A STYLE |
| Inside Diameter | 4.000 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | WATER, FRESH AND WATER, SALT SINGLE RESPONSE |
| Hydrostatic Test Pressure | 100.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 4 SECOND END |
| Thread Quantity Per Inch | 4 FIRST END |
| Outer Covering Environmental Protection | WATER RESISTANT AND SALT WATER RESISTANT |
| Special Markings | WATER,SUCTION |
| Thread Series Designator | NH SECOND END |
| Thread Series Designator | NH 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 |
|---|---|
| AA59566-BA2040240 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A-A-59566 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| ZZ-H-561 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-121-7474 is a Hose Assembly,nonmetallic, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-121-7474 has 1 manufacturer part number on file: AA59566-BA2040240 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for AA59566-BA2040240: Measuring Method and Length: 240.000 INCHES NOMINAL EXCLUDING END FITTINGS IN; Connection Style: PLAIN SECOND END; Connection Style: SWIVEL NUT, GASKET SEAL FIRST END; Vacuum in Torr: 254.0. 26 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.