The Screw,shoulder, cataloged under National Stock Number 5305-01-140-4320, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-01-140-4320 |
| Primary Part Number | 4437 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | CANCELLED |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Material | STEEL COMP 303 OVERALL |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Fastener Length | 0.907 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Head Style | FLAT CHAMFER |
| Head Height | 0.219 INCHES NOMINAL IN |
| Shoulder Length | 0.250 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Shoulder Diameter | 0.312 INCHES NOMINAL FIRST SHOULDER IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4245261-028 | Ail Systems Inc Sub of Eaton Corp (USA) |
| 12614906 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 13100 | Safety Socket Llc (USA) |
| 4437 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
NSN 5305-01-140-4320 is a Screw,shoulder, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-01-140-4320 has 4 cross-referenced part numbers: 4245261-028 (Ail Systems Inc Sub of Eaton Corp), 12614906 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 13100 (Safety Socket Llc), 4437 (Roller Bearing Co of America, Inc Div Pic Design).
There are 12 known substitutes for 5305-01-140-4320: 1620-00-041-0433, 5120-00-116-3136, 5810-00-126-9649 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4437: Width Across Flats: 0.156 INCHES NOMINAL IN; Material: STEEL COMP 303 OVERALL; Shoulder Shape: ROUND FIRST SHOULDER; Internal Drive Style: HEXAGON. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-01-140-4320 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.