The Screw,machine, cataloged under National Stock Number 5305-00-208-0042, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Smith Meter Inc Parts Opn. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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 | 5305-00-208-0042 |
| Primary Part Number | A1439 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Smith Meter Inc Parts Opn |
| Status | ACTIVE |
| Thread Series Designator | UNF |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 24 |
| Thread Class | 3A A |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Screw Material | COPPER ALLOY |
| Head Height | 0.203 INCHES NOMINAL IN |
| Head Diameter | 0.438 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A1439 PRIMARY | Smith Meter Inc Parts Opn (USA) |
| 8117ITEM21 | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| A1439 | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| 1439 | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| 8517ITEM21 | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| A1439 | Zf Industrieantriebe Witten Gmbh (DEU) |
NSN 5305-00-208-0042 is a Screw,machine, manufactured by Smith Meter Inc Parts Opn, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-208-0042 has 6 cross-referenced part numbers: A1439 (Smith Meter Inc Parts Opn), 8117ITEM21 (A. O. Smith Corporation Dba a O Smith Corp), A1439 (A. O. Smith Corporation Dba a O Smith Corp), 1439 (A. O. Smith Corporation Dba a O Smith Corp), 8517ITEM21 (A. O. Smith Corporation Dba a O Smith Corp) and 1 more.
There are 12 known substitutes for 5305-00-208-0042: 5895-00-020-8811, 3110-00-100-5356, 3110-00-130-5514 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for A1439: Thread Series Designator: UNF; Thread Length: 0.375 INCHES MINIMUM IN; Head Style: FILLISTER; Thread Direction: RIGHT-HAND. 12 total characteristics are documented in the Federal Logistics Information System.