The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-999-7776, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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 | 4720-00-999-7776 |
| Primary Part Number | M26521-4-240 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Measuring Method and Length | 240.000 INCHES NOMINAL OVERALL IN |
| Specification/standard Data | 81349-MIL-H-26521 GOVERNMENT SPECIFICATION |
| Thread Series Designator | NPSH SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Connection Style | GASKET SEAL / OPTIONAL END SECOND END |
| Nominal Thread Size | 4.000 INCHES FIRST END IN |
| End Fitting Component and Material | COMPLETE FITTING COPPER ALLOY ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Connection Style | PLAIN FIRST END |
| Outer Covering Environmental Protection | FUEL RESISTANT AND OIL RESISTANT AND MILDEW RESISTANT AND OZONE RESISTANT |
| Nominal Thread Size | 4.000 INCHES SECOND END IN |
| Burst Test Pressure | 700.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Thread Direction | RIGHT-HAND SECOND END |
| Layer Composition and Location | OUTER LAYER MOLDED RUBBER, CHLOROPRENE |
| Hydrostatic Test Pressure | 280.0 POUNDS PER SQUARE INCH LBS |
| Inside Surface Condition | SMOOTH |
| Inside Diameter | 4.000 INCHES NOMINAL IN |
| End Connection Design | STRAIGHT FIRST END |
| Outside Diameter | 4.625 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M26521-4-240 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-H-26521 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M26521C4.0R240 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 22291 | Hbd Industries, Inc Div Hbd/thermoid Inc (USA) |
| MIL-DTL-26521 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 26887-0078 | Harsco Corp Bmy-Combat Systems Div (USA) |
NSN 4720-00-999-7776 is a Hose Assembly,nonmetallic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-00-999-7776 has 6 cross-referenced part numbers: M26521-4-240 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-H-26521 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M26521C4.0R240 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 22291 (Hbd Industries, Inc Div Hbd/thermoid Inc), MIL-DTL-26521 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There are 12 known substitutes for 4720-00-999-7776: 4320-00-005-7464, 4720-00-088-3053, 4720-00-088-4492 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for M26521-4-240: Measuring Method and Length: 240.000 INCHES NOMINAL OVERALL IN; Specification/standard Data: 81349-MIL-H-26521 GOVERNMENT SPECIFICATION; Thread Series Designator: NPSH SECOND END; Thread Direction: RIGHT-HAND FIRST END. 25 total characteristics are documented in the Federal Logistics Information System.