The Screw,machine, cataloged under National Stock Number 5305-00-051-0841, 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 16 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-051-0841 |
| Primary Part Number | MS51957-100 |
| 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 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 |
| Thread Quantity Per Inch | 18 |
| Thread Length | 1.389 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Head Diameter | 0.594 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Head Height | 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Head Style | PAN |
| Screw Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES |
| Thread Class | 2A A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51957-100 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 23113 | Federal Screw Products, Inc. (USA) |
| 23113ADX | Airdale Express Llc Div Airdale Express (USA) |
NSN 5305-00-051-0841 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 5305-00-051-0841 has 3 cross-referenced part numbers: MS51957-100 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 23113 (Federal Screw Products, Inc.), 23113ADX (Airdale Express Llc Div Airdale Express).
There are 4 known substitutes for 5305-00-051-0841: 5360-00-119-2307, 5950-00-645-7688, 5961-01-169-4695 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS51957-100: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Internal Drive Style: CROSS RECESS TYPE 1; Nominal Thread Diameter: 0.312 INCHES IN; Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS. 16 total characteristics are documented in the Federal Logistics Information System.