The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-783-7990, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 17 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-783-7990 |
| Primary Part Number | 55440 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Parker Hannifin Corporation Div Hydraulic Systems Division |
| Status | ACTIVE |
| Internal Drive Style | HEXAGON |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Hole Type | DRILLED |
| Material | STEEL COMP 302 OVERALL |
| Thread Series Designator | UNF |
| Thread Direction | RIGHT-HAND |
| Head Diameter | 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Hole Quantity | 6 |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Height | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Fastener Length | 0.562 INCHES NOMINAL IN |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Hole Diameter | 0.047 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 32 |
| Hole Configuration Style | ROUND LONGITUDINAL HOLE |
| Thread Class | 3A A |
| Head Style | FLAT CHAMFER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 55440 PRIMARY | Parker Hannifin Corporation Div Hydraulic Systems Division (USA) |
NSN 5305-00-783-7990 is a Screw,cap,socket Head, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-783-7990 has 1 cross-referenced part number: 55440 (Parker Hannifin Corporation Div Hydraulic Systems Division).
There are 6 known substitutes for 5305-00-783-7990: 5133-00-555-8899, 5996-01-096-4114, 6220-01-202-5531 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55440: Internal Drive Style: HEXAGON; Thread Length: 0.500 INCHES MINIMUM IN; Hole Type: DRILLED; Material: STEEL COMP 302 OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.