The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-145-7609, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 14 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 | 5305-01-145-7609 |
| Primary Part Number | 845-4687679-3 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Class | 2A A |
| Head Height | 0.380 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Diameter | 0.620 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 16 |
| Head Style | WATERTIGHT |
| Thread Direction | RIGHT-HAND |
| First Diameter From Head | 0.250 INCHES NOMINAL IN |
| Internal Drive Style | SLOT |
| Fastener Length | 1.630 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.250 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Length | 0.380 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 845-4687679-3 PRIMARY | Naval Ship Systems Command (USA) |
| E8.4 | Apm Hexseal Corp (USA) |
| E8.4 | Main Machine Co., Inc. Div Main Machine & Tool Co. (USA) |
NSN 5305-01-145-7609 is a Screw,externally Relieved Body, manufactured by Naval Ship Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-145-7609 has 3 cross-referenced part numbers: 845-4687679-3 (Naval Ship Systems Command), E8.4 (Apm Hexseal Corp), E8.4 (Main Machine Co., Inc. Div Main Machine & Tool Co.).
There are 4 known substitutes for 5305-01-145-7609: 6125-00-673-8273, 4820-00-775-5999, 5120-01-140-4497 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 845-4687679-3: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Class: 2A A; Head Height: 0.380 INCHES NOMINAL IN; Nominal Thread Diameter: 0.375 INCHES IN. 14 total characteristics are documented in the Federal Logistics Information System.