The Elbow,tube, cataloged under National Stock Number 4730-00-221-8749, 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 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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 | 4730-00-221-8749 |
| Primary Part Number | M1283 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Thread Class | 2B FIRST END |
| Material | COPPER ALLOY OVERALL |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Leg Length | 1.375 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Connection Style | INVERTED FLARE (TUBE) FIRST END |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Connection Style | INVERTED FLARE (TUBE) SECOND END |
| Leg Length | 0.312 INCHES NOMINAL FIRST END IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Thread Quantity Per Inch | 24 FIRST END |
| Flow Angle | 90.0 DEGREES |
| Seat Angle | 12.5 DEGREES SECOND END |
| Thread Series Designator | NPT SECOND END |
| Seat Angle | 45.0 DEGREES FIRST END |
| Thread Series Designator | UNS FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4730-00-221-8749 is a Elbow,tube, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-221-8749 has 3 cross-referenced part numbers: M1283 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), M1283 (Datamarine Intl Inc), 71362 (Little Giant Crane and Shovel Inc).
There are 4 known substitutes for 4730-00-221-8749: 1650-00-489-1660, 5950-01-049-5791, 3110-01-075-5840 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for M1283: Thread Class: 2B FIRST END; Material: COPPER ALLOY OVERALL; Connection Type: THREADED INTERNAL TUBE FIRST END; Special Features: EXTERNAL TUBE 0.625-18ON END. 19 total characteristics are documented in the Federal Logistics Information System.