The Adapter,straight,pipe to Hose, cataloged under National Stock Number 4730-00-998-3554, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-998-3554 |
| Item Name | Adapter,straight,pipe to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HOSE COUPLING NUT |
| Connection Style | GRIPPING (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Special Test Features | SUBJECTED TO TESTING OR VERIFIED THAT MATERIAL USED IS NOT ADVERSELY AFFECTED BY HUMIDITY OF SALT WATER SPRAY FOR USE IN HYDROCARBON AIRCRAFT GROUND FUELING |
| Nominal Inside Diameter Hose Accommodated | 3.000 INCHES SECOND END IN |
| Nominal Outside Diameter Hose Accommodated | 3.594 INCHES SECOND END IN |
| Nominal Overall Length | 4.750 INCHES IN |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Operating Pressure | 320.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 3.000 INCHES FIRST END IN |
| Specification/standard Data | 81349-MIL-C-38404 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Surface Treatment | CADMIUM OVERALL |
| Media for Which Designed | FUEL SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 300M38404 | 5/9 Secondary reference Labarge Products Inc. |
| 300M38404 | C/1 Advisory reference — outside the item-of-supply concept W. H. Smith Hardware Company, the |
| MIL-C-38404 | 4/1 Identification reference U.S. Government activity |
| M38404-1-I-E | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-00-998-3554 is a Adapter,straight,pipe to Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-011-2800, 4730-01-141-8584, 4730-01-423-8771. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-998-3554: Furnished Items and Quantity: 1 HOSE COUPLING NUT; Connection Style: GRIPPING (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Special Test Features: SUBJECTED TO TESTING OR VERIFIED THAT MATERIAL USED IS NOT ADVERSELY AFFECTED BY HUMIDITY OF SALT WATER SPRAY FOR USE IN HYDROCARBON AIRCRAFT GROUND FUELING. 17 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.