The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-206-9837, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-206-9837 |
| Primary Part Number | 74399 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| First Diameter From Head | 0.125 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL OVERALL |
| Fastener Length | 0.766 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.188 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.578 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.188 INCHES MINIMUM IN |
| Thread Series Designator | UNF |
| Externally Relieved Body Diameter Quantity | 2 |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 40 |
| Second Diameter From Head | 0.094 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Head Height | 0.094 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-206-9837 is a Screw,externally Relieved Body, manufactured by Telemechanics Inc, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-206-9837 has 2 cross-referenced part numbers: 74399 (American Telephone and Telegraph Co), 74399 (Telemechanics Inc).
There are 3 known substitutes for 5305-00-206-9837: 5133-00-228-1382, 3120-00-356-1215, 5330-01-018-7954. Verify interchangeability with system specifications before substitution.
Key specifications for 74399: Width Between Flats: 0.250 INCHES NOMINAL IN; First Diameter From Head: 0.125 INCHES NOMINAL IN; Thread Class: 3A A; Material: STEEL OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.