The Screw,shoulder, cataloged under National Stock Number 5305-00-068-9203, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 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 | 5305-00-068-9203 |
| Primary Part Number | 4318 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Thread Length | 0.156 INCHES MINIMUM IN |
| Head Style | FLAT CHAMFER |
| Head Height | 0.156 INCHES NOMINAL IN |
| Shoulder Length | 0.281 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shoulder Diameter | 0.188 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Direction | RIGHT-HAND |
| Head Diameter | 0.312 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Hardness Rating | 75.0 ROCKWELL B MINIMUM AND 83.0 ROCKWELL B MAXIMUM OVERALL |
| Minimum Tensile Strength | 100000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Material | STEEL COMP 303 OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Thread Quantity Per Inch | 32 |
| Surface Treatment | PASSIVATE OVERALL |
| Fastener Length | 5.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4318 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| GS550H08-5 | Northrop Grumman Systems Corporation (USA) |
| CL-43-SHS | Carr Lane Manufacturing Co (USA) |
| GS550AH-5 | Northrop Grumman Systems Corporation (USA) |
| GS550H08-S | Northrop Grumman Systems Corporation (USA) |
| GS550H08-5 | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| SM-C-772968-14 | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA) |
| 10689340-2 | Us Army Aviation and Missile Command (USA) |
| 720211-9 | Raytheon Company Div Rmd Strategic (USA) |
| GS550H08-5 | Ellisco Inc (USA) |
| 411200-4 | Leonardo Mw Ltd (GBR) |
| GS550H08-5 | W. M. Berg, Inc. (USA) |
NSN 5305-00-068-9203 is a Screw,shoulder, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-068-9203 has 12 cross-referenced part numbers: 4318 (Roller Bearing Co of America, Inc Div Pic Design), GS550H08-5 (Northrop Grumman Systems Corporation), CL-43-SHS (Carr Lane Manufacturing Co), GS550AH-5 (Northrop Grumman Systems Corporation), GS550H08-S (Northrop Grumman Systems Corporation) and 7 more.
There are 12 known substitutes for 5305-00-068-9203: 6680-00-018-2881, 9330-00-052-4732, 3110-00-144-9004 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4318: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Length: 0.156 INCHES MINIMUM IN; Head Style: FLAT CHAMFER; Head Height: 0.156 INCHES NOMINAL IN. 18 total characteristics are documented in the Federal Logistics Information System.