The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-492-6040, 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17 specifications, cited from the U.S. Government catalog. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-492-6040 |
| Item Name | Adapter,straight,tube to Boss |
| 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 | MIL-C-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Nominal Overall Length | 1.375 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 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 | 0.750 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Maximum Operating Temp | 121.0 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 2A ALL ENDS A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 7315X8 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| MS51843-6P | 5/9 Secondary reference U.S. Government activity |
| MS51843-6P | 5/1 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 163759 | C/1 Advisory reference — outside the item-of-supply concept Cummins Inc. |
| 163759 | 5/9 Secondary reference Spalla Inc |
| 735-18 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 163759 | 5/9 Secondary reference Am General Llc |
| 8F5BUS | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| MIL-DTL-18866 | 4/1 Identification reference U.S. Government activity |
| 4730004926040 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| MS51843-6P | 5/9 Secondary reference U.S. Government activity |
| MIL-F-18866 | 5/9 Secondary reference U.S. Government activity |
| MS51843-6PA | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-00-492-6040 is a Adapter,straight,tube to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: cancelled.
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-019-9815, 4730-01-089-5902, 4730-01-478-3826. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-492-6040: Furnished Items and Quantity: 1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT; Surface Treatment Document and Classification: MIL-C-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: FLARELESS (TUBE) FIRST END. 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.
NSN 4730-00-492-6040 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.