The Nut,tube Coupling, cataloged under National Stock Number 4730-00-908-6926, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-908-6926 |
| Primary Part Number | AA557D4 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| Status | ACTIVE |
| Smallest Inside Diameter | 0.305 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Height | 0.620 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series | UNF |
| Nominal Tube Outside Diameter | 0.250 INCHES IN |
| Width Across Flats | 0.543 INCHES NOMINAL IN |
| Length to Shoulder | 0.532 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Nominal Thread Size | 0.438 INCHES IN |
| Thread Quantity Per Inch | 20 |
| Thread Direction | LEFT-HAND |
| Thread Class | 3B |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AA557D4 PRIMARY | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| 1-03028D4 PRIMARY | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 105-01557-19004 | Danfoss Power Solutions II, Llc (USA) |
| 30203 | Faber Enterprises, Inc. Div Faber Enterprise Inc (USA) |
| 105-01557-19004 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| 105-01557-19004 | Dana Corp Weatherhead Div (USA) |
| 11D4D4 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| C557D4 PRIMARY | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| 5069D4 | Tech Aero Inc (USA) |
| 111557D4 | Huck International, Inc (USA) |
| GA7080D4 | Globe Aerospace Inc (USA) |
| 111557D4 | Huck Intl Inc (USA) |
NSN 4730-00-908-6926 is a Nut,tube Coupling, manufactured by Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-908-6926 has 12 cross-referenced part numbers: AA557D4 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), 1-03028D4 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 105-01557-19004 (Danfoss Power Solutions II, Llc), 30203 (Faber Enterprises, Inc. Div Faber Enterprise Inc), 105-01557-19004 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company) and 7 more.
There are 12 known substitutes for 4730-00-908-6926: 3110-00-156-7513, 5365-00-188-8280, 3110-00-785-6496 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AA557D4: Smallest Inside Diameter: 0.305 INCHES NOMINAL IN; Surface Treatment: ANODIZE OVERALL; Nut Height: 0.620 INCHES NOMINAL IN; Material: ALUMINUM ALLOY OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.