The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-654-2770, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-654-2770 |
| Primary Part Number | SAE J1453 8-4 520120C |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.625 INCHES ALL ENDS IN |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Connection Style | SWIVEL NUT, GASKET SEAL (TUBE) SECOND END |
| Nominal Overall Length | 1.133 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Style Designator | FLARELESS W/ CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.386 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.433 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.8125 INCHES SECOND END IN |
| Nominal Thread Size | 0.4375 INCHES FIRST END IN |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Quantity Per Inch | 16 SECOND END |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | STEEL BODY |
| Thread Series Designator | UN SECOND END |
| Thread Series Designator | UNF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SAE J1453 8-4 520120C PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE J1453 8-4 520120C | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-654-2770 is a Adapter,straight,tube to Boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-654-2770 has 1 manufacturer part number on file: SAE J1453 8-4 520120C (Sae International Dba Sae International).
Key specifications for SAE J1453 8-4 520120C: Nominal Width Across Flats: 0.625 INCHES ALL ENDS IN; Connection Style: GASKET SEAL (BOSS) FIRST END; Connection Style: SWIVEL NUT, GASKET SEAL (TUBE) SECOND END; Nominal Overall Length: 1.133 INCHES IN. 19 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.