The Setscrew, cataloged under National Stock Number 5305-00-206-7757, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 5305-00-206-7757 |
| Primary Part Number | 303078 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Thread Class | 3A A |
| Head Style | HEADLESS (SETSCREW) |
| Material | STEEL OVERALL |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Minimum Tensile Strength | 225000 POUNDS PER SQUARE INCH LBS |
| Thread Length | 0.500 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Point Style | FLAT |
| Thread Quantity Per Inch | 32 |
| Internal Drive Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Across Flats | 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 303078 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5305-00-206-7757 is a Setscrew, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-206-7757 has 1 cross-referenced part number: 303078 (Lockheed Martin Corporation Div Rms - Mitchel Field).
There are 4 known substitutes for 5305-00-206-7757: 3130-00-159-1475, 5305-00-987-0364, 3110-01-147-7831 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 303078: Thread Class: 3A A; Head Style: HEADLESS (SETSCREW); Special Features: TIP ONLY CASEHARDENED; Material: STEEL OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.