The Tee,hose, cataloged under National Stock Number 4730-01-128-4175, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) 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 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-128-4175 |
| Primary Part Number | A52405-6 |
| Item Name | Tee,hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | BEADED (HOSE) ALL ENDS |
| Nominal Inside Diameter Hose Accommodated | 0.500 INCHES ALL ENDS IN |
| Criticality Code Justification | FEAT |
| Connection Type | UNTHREADED EXTERNAL HOSE ALL ENDS |
| Material Document and Classification | QQ-A-255/7,H32 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8,T6 FED SPEC 1ST MATERIAL RESPONSE BODY |
| Material Document and Classification | WW-T-700/4,H34 FED SPEC 2ND MATERIAL RESPONSE OR WW-T-700/6,T6 FED SPEC 2ND MATERIAL RESPONSE TUBE |
| Leg Length | 1.938 INCHES MINIMUM AND 1.969 INCHES MAXIMUM ALL ENDS IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 6061 TUBE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| A52405-6 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| MS24521-6 | 5/9 Secondary reference U.S. Government activity |
| A-A-52405 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 10108621 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-128-4175 is a Tee,hose, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-128-4175 has 1 manufacturer part number on file: A52405-6 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-159-9734, 4730-01-288-3865. Verify interchangeability with system specifications before substitution.
Key specifications for A52405-6: Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: BEADED (HOSE) ALL ENDS; Nominal Inside Diameter Hose Accommodated: 0.500 INCHES ALL ENDS IN; Criticality Code Justification: FEAT. 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.