The Setscrew, cataloged under National Stock Number 5305-00-682-5972, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 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 | 5305-00-682-5972 |
| Primary Part Number | MS51021-70 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use |
| Status | CANCELLED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Thread Quantity Per Inch | 18 |
| Internal Drive Style | HEXAGON |
| Head Style | HEADLESS (SETSCREW) |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Point Style | CUP |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Class | 3A A |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFS103TYPE3STYLE4 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 83-56 | Cnh Industrial America Llc Dba Cnh America (USA) |
| MS51021-70 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 1885HX | Oshkosh Corp (USA) |
| 5/16-18UNC-3AX3/8LG | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 730-990120-811 | Cmc Electronics Inc (CAN) |
| MS51021-70 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| 730-990120-811 | Cmc Electronics Inc (CAN) |
| 003-07941-070 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| 109A2-X-24 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
NSN 5305-00-682-5972 is a Setscrew, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-682-5972 has 10 cross-referenced part numbers: FFS103TYPE3STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC), 83-56 (Cnh Industrial America Llc Dba Cnh America), MS51021-70 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1885HX (Oshkosh Corp), 5/16-18UNC-3AX3/8LG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.
There are 11 known substitutes for 5305-00-682-5972: 6240-00-155-8714, 5999-00-217-0552, 3030-00-431-7196 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS51021-70: Surface Treatment: PASSIVATE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-682-5972 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.