The Setscrew, cataloged under National Stock Number 5305-00-253-3638, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-253-3638 |
| Primary Part Number | MILB933TYPEG |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Thread Length | 1.265 INCHES MAXIMUM IN |
| Point Style | CUP |
| 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 |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nondefinitive Spec/std Data | 1 TYPE AND 4 STYLE |
| Head Style | HEADLESS (SETSCREW) |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Fastener Length | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 18 |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Internal Drive Style | HEXAGON |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MILB933TYPEG | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5305-00-253-3638 is a Setscrew, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-253-3638 has 1 cross-referenced part number: MILB933TYPEG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 12 known substitutes for 5305-00-253-3638: 5305-00-249-0198, 5305-00-249-0209, 5305-00-249-0210 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MILB933TYPEG: Thread Length: 1.265 INCHES MAXIMUM IN; Point Style: CUP; 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. 15 total characteristics are documented in the Federal Logistics Information System.