The Tubing Assembly,nonmetallic, cataloged under National Stock Number 4720-01-281-5353, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is May Industries Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-281-5353 |
| Primary Part Number | 740790 |
| Item Name | Tubing Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | May Industries Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Inside Surface Condition | SMOOTH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 740790 PRIMARY | May Industries Inc (USA) |
| 4101718 PRIMARY | Lockheed Martin Corporation (USA) |
| 4101718 | Rtx Corporation Div Pratt & Whitney (USA) |
| 4101718 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 4101718 | May Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 4101718 | 5/2 Secondary reference U.S. Government activity |
| 740790 | 5/9 Secondary reference Lockheed Martin Corporation |
| 740790 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-281-5353 is a Tubing Assembly,nonmetallic, manufactured by May Industries Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-281-5353 has 5 manufacturer part numbers on file: 740790 (May Industries Inc), 4101718 (Lockheed Martin Corporation), 4101718 (Rtx Corporation Div Pratt & Whitney), 4101718 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 4101718 (May Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-383-5023. Verify interchangeability with system specifications before substitution.
Key specifications for 740790: Criticality Code Justification: FEAT; Inside Surface Condition: SMOOTH; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: AIRCRAFT, F-16. 2 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 4720-01-281-5353 has DEMIL Code Q. 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.