The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-409-3893, 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 22 specifications, cited from the U.S. Government catalog. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-409-3893 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | CANCELLED |
| Furnished Items and Quantity | 1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARELESS (TUBE) FIRST ENDFLARELESS (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END |
| Nominal Overall Length | 1.440 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST ENDTHREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.375 INCHES SECOND END0.375 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END0.750 INCHES FIRST END IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Maximum Operating Temp | 250.0 FAHRENHEIT FIRST RESPONSE250.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 250.0 FAHRENHEIT SECOND RESPONSE250.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Nondefinitive Spec/std Data | 2 CLASS AND 1 STYLE AND 1 TYPE |
| Surface Treatment | CADMIUM OVERALL |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 2A FIRST END2A FIRST END A |
| Material | STEEL OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | NPTF SECOND ENDUNF FIRST END |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4730PL0627432 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS51819-9 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 44291 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| MS51819-9 | 5/9 Secondary reference U.S. Government activity |
| 8FBUS | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 8FBUS | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4730004093893 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 4730004093893 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| X1506HC8 | 5/9 Secondary reference U.S. Government activity |
| MS51819-9 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| MIL-F-18866 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| MS51819-9 | 2/2 Government specification standardization U.S. Government activity |
| 716X8 | C/1 Advisory reference — outside the item-of-supply concept Essex Brownell Inc. Div Essex Group Inc |
| MS51819-9 | 5/9 Secondary reference Imperial |
| MS51819-39 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| X1506HC8 | 5/9 Secondary reference Ingersoll Rand Co |
| X1506HC8 | 5/1 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4730-00-409-3893 is a Adapter,straight,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: cancelled.
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-286-8520, 4730-01-598-2939. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-409-3893: Furnished Items and Quantity: 1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARELESS (TUBE) FIRST ENDFLARELESS (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END. 22 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 4730-00-409-3893 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.