The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-170-8303, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-170-8303 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| FSC Application Data | EJECTION SEAT ESCAPE SYSTEM AIRCRAFT MODEL A-7 |
| Measuring Method and Length | 10.880 INCHES MINIMUM WORKING AND 11.120 INCHES MAXIMUM WORKING IN |
| Angle Between Rigid Elbow Fittings in Deg | 90.0 |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | GAS SINGLE RESPONSE |
| Hydrostatic Test Pressure | 3000.0 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 | F |
| Reference | Meaning |
|---|---|
| 12491-1 | 5/9 Secondary reference Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc. |
| 12491-1 | 3/9 Design control — primary reference Ami Industries, Inc Div Utc Aerospace Systems |
| 12491-1 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 4720-01-170-8303 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6110-01-254-5278. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-170-8303: FSC Application Data: EJECTION SEAT ESCAPE SYSTEM AIRCRAFT MODEL A-7; Measuring Method and Length: 10.880 INCHES MINIMUM WORKING AND 11.120 INCHES MAXIMUM WORKING IN; Angle Between Rigid Elbow Fittings in Deg: 90.0; Connection Type: THREADED INTERNAL TUBE FIRST END. 8 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.