The Nut,tube Coupling, cataloged under National Stock Number 4730-00-287-0271, 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 Us Army Aviation and Missile Command. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-287-0271 |
| Primary Part Number | 8176567 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Width Across Flats | 1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/4,TP T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Tube Outside Diameter | 1.250 INCHES IN |
| Nut Height | 1.219 INCHES NOMINAL IN |
| Nominal Thread Size | 1.625 INCHES IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Fabrication Method | MACHINED |
| Thread Quantity Per Inch | 12 |
| Length to Shoulder | 1.017 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3B |
| Smallest Inside Diameter | 1.347 INCHES MINIMUM AND 1.350 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2014 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8176567 | Us Army Aviation and Missile Command (USA) |
| AN818-20D | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| SAE-AS4841 | Sae International Dba Sae International (USA) |
| AN818-20D | Collins Engineering Corp (USA) |
| AN818-20D | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| 720335-20 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 290-200 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| MILF5509A | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AS4841 | Sae International Dba Sae International (USA) |
| AN818 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 290-20D | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 731857-120 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| C8176560 | Us Army Aviation and Missile Command (USA) |
| AN818-20D | Hydrasearch Company, Llc (USA) |
NSN 4730-00-287-0271 is a Nut,tube Coupling, manufactured by Us Army Aviation and Missile Command, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-287-0271 has 14 cross-referenced part numbers: 8176567 (Us Army Aviation and Missile Command), AN818-20D (Aeronautical Standards Group Dept of Navy and Air Force), SAE-AS4841 (Sae International Dba Sae International), AN818-20D (Collins Engineering Corp), AN818-20D (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company) and 9 more.
There are 4 known substitutes for 4730-00-287-0271: 4730-00-287-0288, 4730-00-287-0290, 1210-00-381-5891 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8176567: Width Across Flats: 1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-225/4,TP T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Tube Outside Diameter: 1.250 INCHES IN; Nut Height: 1.219 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.