The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-498-2273, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-498-2273 |
| Primary Part Number | 1977747-5 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Measuring Method and Length | 25.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND 3RD LAYER BRAIDED STEEL WIRE AND OUTER LAYER RUBBER COMPOSITION |
| Connection Type | THREADED INTERNAL HOSE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.813 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | INTERNAL SUPPORT |
| Inside Diameter | 0.367 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON AND HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Hydrostatic Test Pressure | 1000.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 1977574-4 ITEM 77 | Northrop Grumman Systems Corporation (USA) |
| C21116-5 | Hydrasearch Company, Llc (USA) |
| 1977747-5 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 1977574-3 ITEM 77 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1977747 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 4720-01-498-2273 is a Hose Assembly,nonmetallic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-498-2273 has 4 manufacturer part numbers on file: 1977574-4 ITEM 77 (Northrop Grumman Systems Corporation), C21116-5 (Hydrasearch Company, Llc), 1977747-5 (Northrop Grumman Systems Corporation), 1977574-3 ITEM 77 (Northrop Grumman Systems Corporation).
Key specifications for 1977747-5: Measuring Method and Length: 25.000 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: SWIVEL NUT, GASKET SEAL FIRST END; End Connection Design: STRAIGHT FIRST END. 14 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.