The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-449-3618, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Glenair, Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-449-3618 |
| Primary Part Number | 121-103-1-1-20BFTTH |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Glenair, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 50.0 FEET NOMINAL OVERALL FT |
| Temp Rating | -46.0 CELSIUS AND 85.0 CELSIUS SINGLE RESPONSE DEGC |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.990 INCHES MAXIMUM IN |
| Inside Diameter | 0.603 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Inside Surface Condition | SMOOTH |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE TUBE |
| 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 |
|---|---|
| 121-103-1-1-20BFTTH PRIMARY | Glenair, Inc. (USA) |
| 11472589-7 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 11472589 | 7/1 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 4720-01-449-3618 is a Tubing,nonmetallic, manufactured by Glenair, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-449-3618 has 2 manufacturer part numbers on file: 121-103-1-1-20BFTTH (Glenair, Inc.), 11472589-7 (Us Army Aviation and Missile Command).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-449-3620, 4720-01-449-3621, 4720-01-450-1747. Verify interchangeability with system specifications before substitution.
Key specifications for 121-103-1-1-20BFTTH: Measuring Method and Length: 50.0 FEET NOMINAL OVERALL FT; Temp Rating: -46.0 CELSIUS AND 85.0 CELSIUS SINGLE RESPONSE DEGC; Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND. 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.