The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-021-6586, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-021-6586 |
| Primary Part Number | 9977224-1 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Measuring Method and Length | 14.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 5.000 INCHES IN |
| Connection Style | INVERTED FLARE FIRST END |
| Layer Composition and Location | 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC AND 1ST LAYER BRAIDED STEEL WIRE |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.844 INCHES NOMINAL IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | REUSABLE END FITTINGS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Seat Angle | 30.0 DEGREES FIRST END |
| Exterior Color | BLACK |
| Inside Diameter | 0.375 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Hydrostatic Test Pressure | 8000.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 16000.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | FIRE RESISTANT |
| Thread Series Designator | NPTF 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 |
|---|---|
| 9977224-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 9977224 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| H1-EC06-06MB-06MB-14 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| H32-4206-6SM6SM14 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| H1HU06-06MCX06MC14 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| H32-4206-65M6SM14 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| H1EC06-06MCX06MC14 | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
NSN 4720-00-021-6586 is a Hose Assembly,nonmetallic, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-021-6586 has 1 manufacturer part number on file: 9977224-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 4720-00-859-0456, 4720-00-859-2431. Verify interchangeability with system specifications before substitution.
Key specifications for 9977224-1: Measuring Method and Length: 14.000 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 5.000 INCHES IN; Connection Style: INVERTED 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.