The Screw,shoulder, cataloged under National Stock Number 5305-00-857-5520, 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 17 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-857-5520 |
| Primary Part Number | 4322 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Head Height | 0.160 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
| Fastener Length | 0.940 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material Document and Classification | MIL-S-7720,COMP 303 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Head Diameter | 0.310 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Head Style | FLAT CHAMFER |
| Thread Length | 0.190 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.498 INCHES MAXIMUM FIRST SHOULDER IN |
| Internal Drive Style | SLOT |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Shoulder Length | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM FIRST SHOULDER IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-857-5520 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 5305-00-857-5520 has 3 cross-referenced part numbers: 4322 (Roller Bearing Co of America, Inc Div Pic Design), 10215082 (Us Army Aviation and Missile Command), 720211-13 (Raytheon Company Div Rmd Strategic).
There are 9 known substitutes for 5305-00-857-5520: 5360-00-291-7596, 4730-00-753-1322, 6625-00-794-0254 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4322: Head Height: 0.160 INCHES NOMINAL IN; Thread Quantity Per Inch: 32; Material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL; Fastener Length: 0.940 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.