The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-645-7696, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-645-7696 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 300.0 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Wall Thickness | 0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Inside Diameter | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN |
| Inside Surface Condition | SMOOTH |
| Material | RUBBER SYNTHETIC OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-PRF-6855/4 | 4/1 Identification reference U.S. Government activity |
| M6855/4-10L267 | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-6855/4A | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-645-7696 is a Tubing,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4720-01-659-3781. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-645-7696: Measuring Method and Length: 300.0 INCHES NOMINAL EXCLUDING END FITTINGS IN; Wall Thickness: 0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Inside Diameter: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN; Inside Surface Condition: SMOOTH. 5 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.