The Hose,preformed, cataloged under National Stock Number 4720-00-620-6819, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Gates Corporation. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-620-6819 |
| Primary Part Number | A4888 |
| Item Name | Hose,preformed |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Gates Corporation |
| Status | ACTIVE |
| Style Designator | STRAIGHT CORRUGATED |
| Material Document and Classification | GATES RUBBER CO,63SB MFR REF SINGLE MATERIAL RESPONSE COVER |
| Wall Thickness | 0.125 INCHES NOMINAL IN |
| Inside Diameter | 3.500 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR OVERALL |
| Second Arm Length | 1.500 INCHES NOMINAL IN |
| Working Length | 20.375 INCHES MINIMUM AND 22.375 INCHES MAXIMUM IN |
| First Arm Length | 1.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 4663A 3 1/2IN.IDX21 3/8IN.LG | Gates Corporation (USA) |
| A4888 PRIMARY | Gates Corporation (USA) |
| 63SB 3 1/2IN.IDX21 3/8IN.LG | Gates Corporation (USA) |
NSN 4720-00-620-6819 is a Hose,preformed, manufactured by Gates Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-620-6819 has 3 manufacturer part numbers on file: 4663A 3 1/2IN.IDX21 3/8IN.LG (Gates Corporation), A4888 (Gates Corporation), 63SB 3 1/2IN.IDX21 3/8IN.LG (Gates Corporation).
Key specifications for A4888: Style Designator: STRAIGHT CORRUGATED; Material Document and Classification: GATES RUBBER CO,63SB MFR REF SINGLE MATERIAL RESPONSE COVER; Wall Thickness: 0.125 INCHES NOMINAL IN; Inside Diameter: 3.500 INCHES NOMINAL IN. 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.