The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-044-5284, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-044-5284 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Length | 1.024 INCHES FIRST END IN |
| Connection Type | THREADED INTERNAL BOSS SECOND END |
| Connection Type | FLANGE FIRST END |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.112 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 0.812 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 1.024 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 0.812 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | ALUMINUM ALLOY 2024 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 |
|---|---|
| 77556-1 | 3/2 Design control — primary reference U.S. Government activity |
| 77556 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-044-5284 is a Adapter,straight,flange to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6210-01-097-0927, 5998-01-352-7086. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-044-5284: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Flange Face Design: PLAIN FIRST END; Connection Style: GASKET SEAL (BOSS) SECOND END; Nominal Length: 1.024 INCHES FIRST END IN. 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.
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.