The Tubing,nonmetallic, cataloged under National Stock Number 4720-00-231-2477, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-231-2477 |
| Primary Part Number | CS4720-0021A04ZNR |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Specification/standard Data | 81348-ZZ-T-831 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Minimum Tensile Strength | 1700 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | OXIDATION RESISTANT |
| Material | RUBBER NATURAL 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 |
|---|---|
| CS4720-0021A04ZNR PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| CS4720-0021A04ZNR PRIMARY | Kirkhill, Inc. Dba Kirkhill Inc (USA) |
| CS4720-0021A04ZNR PRIMARY | Goodall Rubber Co (USA) |
| Reference | Meaning |
|---|---|
| ZZ-T-831 | 4/1 Identification reference U.S. Government activity |
| CS4720-0021A04ZNR | 5/9 Secondary reference U.S. Government activity |
| CS4720-0021A04ZNR | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-231-2477 is a Tubing,nonmetallic, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-231-2477 has 3 manufacturer part numbers on file: CS4720-0021A04ZNR (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), CS4720-0021A04ZNR (Kirkhill, Inc. Dba Kirkhill Inc), CS4720-0021A04ZNR (Goodall Rubber Co).
Key specifications for CS4720-0021A04ZNR: Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.375 INCHES NOMINAL IN; Specification/standard Data: 81348-ZZ-T-831 GOVERNMENT SPECIFICATION. 10 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.