The Setscrew, cataloged under National Stock Number 5305-00-724-6739, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-724-6739 |
| Primary Part Number | MS51965-55 |
| Item Name | Setscrew |
| 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 |
| Head Style | HEADLESS (SETSCREW) |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Internal Drive Style | HEXAGON |
| Thread Length | 0.500 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 20 |
| Point Style | FLAT |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51965-55 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| H7689PC33 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
NSN 5305-00-724-6739 is a Setscrew, 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 5305-00-724-6739 has 2 cross-referenced part numbers: MS51965-55 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), H7689PC33 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture).
There is 1 known substitute for 5305-00-724-6739: 5305-00-723-9383. Verify interchangeability with system specifications before substitution.
Key specifications for MS51965-55: Head Style: HEADLESS (SETSCREW); Nominal Thread Diameter: 0.250 INCHES IN; Thread Direction: RIGHT-HAND; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.