The Coupling,boss, cataloged under National Stock Number 4730-01-179-2907, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-179-2907 |
| Primary Part Number | AE16570-4 |
| Item Name | Coupling,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SWIVEL NUT |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) FIRST END |
| Nominal Overall Length | 1.257 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Style Designator | RIGID, SHORT CENTER WRENCHING FACILITY |
| Material Document and Classification | AMS4965 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.437 INCHES FIRST END IN |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 37.0 DEGREES SECOND END |
| Surface Treatment | LUBRICANT DRY FILM OVERALL |
| Media for Which Designed | FUEL SINGLE RESPONSE |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 24 FIRST END |
| Material | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| Thread Series Designator | UNJS 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 |
|---|---|
| AE16570-4 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| R44150T-04 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AP310T04 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| ST7M393T4 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| ST7M393 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-179-2907 is a Coupling,boss, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-179-2907 has 4 manufacturer part numbers on file: AE16570-4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), R44150T-04 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AP310T04 (Sps Technologies, Llc Dba Airdrome Precision Components), ST7M393T4 (The Boeing Company Div Defense).
Key specifications for AE16570-4: Furnished Items and Quantity: 1 SWIVEL NUT; Connection Style: FLARED (TUBE) SECOND END; Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) FIRST END; Nominal Overall Length: 1.257 INCHES IN. 21 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.