The Setscrew, cataloged under National Stock Number 5305-00-805-9748, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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 | 5305-00-805-9748 |
| Primary Part Number | 844378-22 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| Status | CANCELLED |
| Point Style | CUP |
| Internal Drive Style | SIX SPLINE |
| Spline Width | 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 AND CHROMATE OVERALL |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 0.125 INCHES NOMINAL IN |
| Spline Major Diameter | 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Spline Minor Diameter | 0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN |
| Thread Length | 0.125 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 40 |
| Head Style | HEADLESS (SETSCREW) |
| Thread Class | 3A A |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 844378-22 | Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA) |
| 844378-22 | Rca Corp Distributor and Special Products Div |
| MS51053-112 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FFS103TYPE4STYLE4 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-00-805-9748 is a Setscrew, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-805-9748 has 4 cross-referenced part numbers: 844378-22 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 844378-22 (Rca Corp Distributor and Special Products Div), MS51053-112 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS103TYPE4STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 5305-00-805-9748: 5305-00-014-5852, 5305-00-272-3567, 5305-00-274-0105 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 844378-22: Point Style: CUP; Internal Drive Style: SIX SPLINE; Spline Width: 0.013 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-805-9748 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.