The Connector,hose,bulkhead, cataloged under National Stock Number 4730-00-278-8552, 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12 specifications, cited from the U.S. Government catalog. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-278-8552 |
| Item Name | Connector,hose,bulkhead |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | BEADED (HOSE) ALL ENDS |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Inside Diameter Hose Accommodated | 1.500 INCHES ALL ENDS IN |
| Nominal Overall Length | 4.000 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL HOSE ALL ENDS |
| Nominal Thread Size | 1.875 INCHES CENTER BULKHEAD IN |
| Specification/standard Data | 88044-AN776 GOVERNMENT STANDARD AND 81343-AS4875/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A CENTER BULKHEAD A |
| Thread Quantity Per Inch | 12 CENTER BULKHEAD |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) CENTER BULKHEAD |
| 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 |
|---|---|
| AS4875/1 | 5/1 Secondary reference Sae International Dba Sae International |
| AN849-24D | 2/2 Government specification standardization U.S. Government activity |
| SAE-AS4843 | 5/1 Secondary reference Sae International Dba Sae International |
| AN849-24D | 5/1 Secondary reference Hydro-Fitting Manufacturing Corporation |
| AS4875/1 | 5/9 Secondary reference U.S. Government activity |
| AN849-24D | 5/1 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AN849-24D | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MIL-F-5509 | 5/9 Secondary reference U.S. Government activity |
| AN849-24D | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AN849-24D | 5/9 Secondary reference Crown Fitting Co Inc |
| AN849-24D | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AN849-24D | 5/1 Secondary reference Aerofit, Llc |
| AN849-24D | 5/9 Secondary reference Collins Engineering Corp |
NSN 4730-00-278-8552 is a Connector,hose,bulkhead, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-278-8552: Connection Style: BEADED (HOSE) ALL ENDS; Connection Style: PLAIN (PIPE) FIRST END; Nominal Inside Diameter Hose Accommodated: 1.500 INCHES ALL ENDS IN; Nominal Overall Length: 4.000 INCHES IN. 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.