The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-421-0116, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Transdigm Inc Div Adelwiggins Group. Government technical data includes 28 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-421-0116 |
| Primary Part Number | H503-0160 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Measuring Method and Length | 16.000 INCHES NOMINAL WORKING IN |
| Temp Rating | -40.0 FAHRENHEIT AND 190.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 2.000 INCHES IN |
| Connection Style | FLARED SECOND END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND OUTER LAYER WOVEN POLYAMIDE CORD |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.720 INCHES NOMINAL IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES SECOND END |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Hydrostatic Test Pressure | 250.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 500.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | FIRE RESISTANT |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND 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 |
|---|---|
| H503-0160 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| 7D0158 | D/9 Drawing number reference only U.S. Government activity |
| 7D0158-3-0160 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-421-0116 is a Hose Assembly,nonmetallic, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-421-0116 has 1 manufacturer part number on file: H503-0160 (Transdigm Inc Div Adelwiggins Group).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-421-0118, 4720-01-421-0119, 4720-01-421-0120. Verify interchangeability with system specifications before substitution.
Key specifications for H503-0160: Measuring Method and Length: 16.000 INCHES NOMINAL WORKING IN; Temp Rating: -40.0 FAHRENHEIT AND 190.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 2.000 INCHES IN; Connection Style: FLARED SECOND END. 28 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.