The Setscrew, cataloged under National Stock Number 5305-00-638-8753, 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 15 commercial cross-references from 11 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 | 5305-00-638-8753 |
| Primary Part Number | MS51021-58 |
| 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 |
| Head Style | HEADLESS (SETSCREW) |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Point Style | CUP |
| Internal Drive Style | HEXAGON |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.375 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 109A2-X-46 | Zf Industrieantriebe Witten Gmbh (DEU) |
| MS51021-58 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| LT-317-119 | Pettibone Llc (USA) |
| CC-3000 ITEM NO.26 | Eddy Pump Corporation Dba Eddy Pump Corp (USA) |
| 109A2X46NYLONIN SR | Zf Industrieantriebe Witten Gmbh (DEU) |
| 83-46 | Cnh Industrial America Llc Dba Cnh America (USA) |
| CC-3001-N | Eddy Pump Corporation Dba Eddy Pump Corp (USA) |
| 52C-00-101-1 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 003-07941-058 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| FFS200 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 122-6817720 PC 73 | Naval Sea Systems Command (USA) |
| MS51021-58 PRIMARY | National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA) |
| ASC1541810 | Asc Pty Ltd (AUS) |
| 730-990008-058 | Cmc Electronics Inc (CAN) |
| 730-990008-058 | Cmc Electronics Inc (CAN) |
NSN 5305-00-638-8753 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 5305-00-638-8753 has 15 cross-referenced part numbers: 109A2-X-46 (Zf Industrieantriebe Witten Gmbh), MS51021-58 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), LT-317-119 (Pettibone Llc), CC-3000 ITEM NO.26 (Eddy Pump Corporation Dba Eddy Pump Corp), 109A2X46NYLONIN SR (Zf Industrieantriebe Witten Gmbh) and 10 more.
There are 11 known substitutes for 5305-00-638-8753: 6610-00-343-9331, 3120-00-353-9464, 4510-00-400-5144 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS51021-58: Head Style: HEADLESS (SETSCREW); Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-638-8753 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.