| Item Name | Elbow Tube |
| Federal Supply Group (FSG) | Pipe Tubing Hose and Fittings |
| Federal Supply Class (FSC) | 4730 Hose Pipe Tube Lubrication and Railing Fittings |
| National Item Identification Number (NIIN) | 00-640-5093 (006405093) |
| NCB Code | USA (00) |
| Manufacturer | Society Of Automotive Engineers Inc, Military Standards Corp, Sae International, Leonardo Spa Aerostructure Division |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| AS21904 | society of automotive engineers inc | elbow tube | RFQ |
| MS21904D12 | military standards corp | elbow tube | RFQ |
| MS21904W12 | society of automotive engineers inc | elbow tube | RFQ |
| AS18280 | society of automotive engineers inc | elbow tube | RFQ |
| AS18280 | sae international | elbow tube | RFQ |
| AS21904 | sae international | elbow tube | RFQ |
| MS21904W12 | sae international | elbow tube | RFQ |
| MS21904D12 | leonardo spa aerostructure division | elbow tube | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A ALL ENDS |
| AGAV | END ITEM IDENTIFICATION | USED ON SIKORSKY MODEL CH-54A AND CH-54B CARGO TRANSPORT HELICOPTERS |
| AHNC | CONNECTION STYLE | FLARELESS (TUBE) ALL ENDS |
| AHSJ | LEG LENGTH | 1.562 INCHES MINIMUM ALL ENDS AND 1.609 INCHES MAXIMUM ALL ENDS |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |
| CMLP | THREAD QUANTITY PER INCH | 12 ALL ENDS |
| CQJX | NOMINAL THREAD SIZE | 1.062 INCHES ALL ENDS |
| CQRB | SEAT ANGLE | 12.0 DEGREES ALL ENDS |
| CRFY | FLOW ANGLE | 90.0 DEGREES |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.750 INCHES ALL ENDS |
| MATT | MATERIAL | ALUMINUM ALLOY OVERALL |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| THSD | THREAD SERIES DESIGNATOR | UNJ ALL ENDS |
| ZZZK | SPECIFICATION/STANDARD DATA | 81343-AS21904 GOVERNMENT STANDARD |
| Relevant Components for NSN - 4730-00-640-5093, 4730006405093 | ||||
| 4730-01-436-2114 (4730014362114) | 4710-01-202-7787 (4710012027787) | 4720-01-526-5273 (4720015265273) | 4720-01-408-1219 (4720014081219) | |
| 4730-01-622-4160 (4730016224160) | 4720-01-589-9450 (4720015899450) | 4720-01-201-5242 (4720012015242) | 4730-00-409-1688 (4730004091688) | |
| 4720-01-137-0340 (4720011370340) | 4710-01-512-8267 (4710015128267) | 4720-01-703-1112 (4720017031112) | 4730-01-478-4701 (4730014784701) | |
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