The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-524-0509, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-524-0509 |
| Primary Part Number | AA55753-040-E-6 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| Inside Diameter | 0.051 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN |
| Inside Surface Condition | SMOOTH |
| Minimum Tensile Strength | 1100 POUNDS PER SQUARE INCH LBS |
| Material | RUBBER SILICONE CLASS Q TUBE |
| Nonmetallic Hardness Rating | 55.0 MINIMUM SHORE DUROMETER A AND 65.0 MAXIMUM SHORE DUROMETER A |
| 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 |
|---|---|
| AA55753-040-E-6 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A-A-55753-040E6 | 5/9 Secondary reference U.S. Government activity |
| ZZR765/9-040E6 | 5/9 Secondary reference U.S. Government activity |
| A-A-55753 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 4720-01-524-0509 is a Tubing,nonmetallic, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-524-0509 has 1 manufacturer part number on file: AA55753-040-E-6 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
5 possible matches (shared part number, not a government interchangeability claim): 4720-01-524-0512, 4720-01-524-0513, 4720-01-524-0514. Verify interchangeability with system specifications before substitution.
Key specifications for AA55753-040-E-6: Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN; Inside Diameter: 0.051 INCHES MINIMUM AND 0.061 INCHES MAXIMUM IN. 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.