The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-436-1624, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-436-1624 |
| Primary Part Number | EB SPEC 2000Q3 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 10.000 INCHES NOMINAL IN |
| Inside Diameter | 4.500 INCHES NOMINAL IN |
| Material | PLASTIC CHLOROTRIFLUOROETHYLENE TUBE |
| Reference Number Differentiating Characteristics | ITEM THAT SUPPORTS A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| EB SPEC 2000Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| MC-903 10IN OD X 4.5 ID X 13LQ3 | Naval Inventory Control Point Mechanicsburg (USA) |
| EB SPEC 2000 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| MC-903 10IN OD X 4.5 ID X 13L | 3/1 Design control — primary reference U.S. Government activity |
| EB SPEC 2000 | 5/1 Secondary reference U.S. Government activity |
NSN 4720-01-436-1624 is a Tubing,nonmetallic, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-436-1624 has 3 manufacturer part numbers on file: EB SPEC 2000Q3 (Naval Inventory Control Point Mechanicsburg), MC-903 10IN OD X 4.5 ID X 13LQ3 (Naval Inventory Control Point Mechanicsburg), EB SPEC 2000 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-540-3853. Verify interchangeability with system specifications before substitution.
Key specifications for EB SPEC 2000Q3: Criticality Code Justification: ZZZY; Cross-Sectional Shape Style: ROUND; Outside Diameter: 10.000 INCHES NOMINAL IN; Inside Diameter: 4.500 INCHES NOMINAL IN. 6 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.
NSN 4720-01-436-1624 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.