The Screw,shoulder, cataloged under National Stock Number 5305-00-178-8642, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is W. M. Berg, Inc.. Government technical data includes 16 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-178-8642 |
| Primary Part Number | PL8 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | W. M. Berg, Inc. |
| Status | ACTIVE |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL COMP 416 OVERALL |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Quantity Per Inch | 32 |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Height | 0.156 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Fastener Length | 0.439 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN |
| Thread Length | 0.188 INCHES NOMINAL IN |
| Head Diameter | 0.312 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Internal Drive Style | SLOT |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shoulder Length | 0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM FIRST SHOULDER IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| PL8 | W. M. Berg, Inc. (USA) |
NSN 5305-00-178-8642 is a Screw,shoulder, manufactured by W. M. Berg, Inc., classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-178-8642 has 1 cross-referenced part number: PL8 (W. M. Berg, Inc.).
There are 2 known substitutes for 5305-00-178-8642: 5120-00-223-7397, 5305-01-171-0151. Verify interchangeability with system specifications before substitution.
Key specifications for PL8: Shoulder Diameter: 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM FIRST SHOULDER IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL COMP 416 OVERALL; Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.