The Setscrew, cataloged under National Stock Number 5305-00-638-5648, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Electric Company. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-638-5648 |
| Primary Part Number | 7876450P3 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nondefinitive Spec/std Data | 2 TYPE AND 3 STYLE |
| Material | STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Departure From Cited Designator | AS MODIFIED BY THREAD CLASS |
| Internal Drive Style | SIX SPLINE |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.250 INCHES MAXIMUM IN |
| Spline Major Diameter | 0.097 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Spline Minor Diameter | 0.080 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Spline Width | 0.021 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Point Style | CUP |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7876450P3 PRIMARY | General Electric Company (USA) |
| 7876450PT3 PRIMARY | General Electric Company (USA) |
| FFS103TYPE4STYLE4 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-00-638-5648 is a Setscrew, manufactured by General Electric Company, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-638-5648 has 3 cross-referenced part numbers: 7876450P3 (General Electric Company), 7876450PT3 (General Electric Company), FFS103TYPE4STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 11 known substitutes for 5305-00-638-5648: 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 7876450P3: Fastener Length: 0.250 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 20 total characteristics are documented in the Federal Logistics Information System.