The Screw,machine, cataloged under National Stock Number 5305-01-139-0838, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-139-0838 |
| Primary Part Number | MS9563-03 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Screw Material | IRON ALLOY 660 |
| Hole Quantity | 4 |
| Thread Length | 0.224 INCHES MINIMUM AND 0.264 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 40 |
| Extended Washer Thickness | 0.030 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Hole Diameter | 0.047 INCHES NOMINAL IN |
| Screw Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Style | DOUBLE HEXAGON W/ HOLE |
| Head Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Fastener Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Width Between Flats | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Extended Washer Diameter | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN |
| Head Height | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-01-139-0838 is a Screw,machine, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-139-0838 has 2 cross-referenced part numbers: MS9563-03 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 123335 (Unison Industries, Llc Dba Unison Industries Inc).
There are 3 known substitutes for 5305-01-139-0838: 5815-00-392-1886, 6210-00-435-9329, 5305-00-576-5417. Verify interchangeability with system specifications before substitution.
Key specifications for MS9563-03: Minimum Tensile Strength: 130000 POUNDS PER SQUARE INCH LBS; Screw Material: IRON ALLOY 660; Hole Quantity: 4; Thread Length: 0.224 INCHES MINIMUM AND 0.264 INCHES MAXIMUM IN. 19 total characteristics are documented in the Federal Logistics Information System.