The Screw,shoulder, cataloged under National Stock Number 5305-01-083-7172, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-01-083-7172 |
| Primary Part Number | 4450 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | CANCELLED |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Head Diameter | 0.562 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL COMP 303 OVERALL |
| Internal Drive Style | HEXAGON |
| Fastener Length | 1.125 INCHES NOMINAL IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Head Style | FLAT CHAMFER |
| Shoulder Diameter | 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM FIRST SHOULDER IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Width Across Flats | 0.188 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 |
| Thread Class | 2A A |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Shoulder Length | 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM FIRST SHOULDER IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 298E865P11 | Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory (USA) |
| 4450 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
NSN 5305-01-083-7172 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 5305-01-083-7172 has 2 cross-referenced part numbers: 298E865P11 (Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory), 4450 (Roller Bearing Co of America, Inc Div Pic Design).
There are 11 known substitutes for 5305-01-083-7172: 5340-00-024-6347, 3110-00-100-0636, 6760-00-397-9635 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4450: Shoulder Shape: ROUND FIRST SHOULDER; Head Diameter: 0.562 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL COMP 303 OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-01-083-7172 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.