The Adapter,straight,hose to Boss, cataloged under National Stock Number 4730-00-258-8556, 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 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-258-8556 |
| Item Name | Adapter,straight,hose to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HOSE COUPLING NUT |
| Connection Style | GRIPPING NIPPLE (NOSE) FIRST END |
| Connection Style | GASKET SEAL (HOSE) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 2.016 INCHES FIRST END IN |
| Nominal Outside Diameter Hose Accommodated | 2.781 INCHES FIRST END IN |
| Nominal Overall Length | 8.000 INCHES IN |
| Connection Type | THREADED EXTERNAL HOSE SECOND END |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST END |
| Material Document and Classification | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 3.625 INCHES SECOND END IN |
| Departure From Cited Designator | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1ITEMS |
| Nondefinitive Spec/std Data | BS TYPE |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | NICKEL ALLOY A OVERALL |
| Thread Series Designator | UN SECOND 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 |
|---|---|
| MILH24135L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MILH24135 | 4/1 Identification reference U.S. Government activity |
NSN 4730-00-258-8556 is a Adapter,straight,hose to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-258-8556: Furnished Items and Quantity: 1 HOSE COUPLING NUT; Connection Style: GRIPPING NIPPLE (NOSE) FIRST END; Connection Style: GASKET SEAL (HOSE) SECOND END; Nominal Inside Diameter Hose Accommodated: 2.016 INCHES FIRST END IN. 16 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.