The Nipple,boss, cataloged under National Stock Number 4730-00-778-9018, 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 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-778-9018 |
| Item Name | Nipple,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 0.950 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Style Designator | CENTER WRENCHING FACILITY W/ THREADED RELIEF |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Surface Treatment | ANODIZE OR ALUMINUM OVERALL |
| Media for Which Designed | AERONAUTICAL FLUID FIRST RESPONSE |
| Media for Which Designed | FLUID SECOND RESPONSE |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 14 ALL ENDS |
| Material | ALUMINUM ALLOY OR ALUMINUM OVERALL |
| Thread Series Designator | UNS ALL ENDS |
| 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 |
|---|---|
| T0563C | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| T0563C | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-00-778-9018 is a Nipple,boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-778-9018: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 0.950 INCHES IN; Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Style Designator: CENTER WRENCHING FACILITY W/ THREADED RELIEF. 12 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.