The Setscrew, cataloged under National Stock Number 5305-01-322-8766, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-322-8766 |
| Primary Part Number | MS51964-64 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNF |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nondefinitive Spec/std Data | 1 TYPE AND 4 STYLE |
| Fastener Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Point Style | CUP |
| Surface Treatment Document and Classification | ASTM B633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Internal Drive Style | HEXAGON |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Departure From Cited Document | AS MODIFIED BY SUFACE TREATMENT |
| Head Style | HEADLESS (SETSCREW) |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51964-64 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FF-S-200 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5305-01-322-8766 is a Setscrew, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-322-8766 has 2 cross-referenced part numbers: MS51964-64 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-S-200 (Federal Specifications Promulgated by General Services Administration Washington DC).
There is 1 known substitute for 5305-01-322-8766: 5305-00-724-5811. Verify interchangeability with system specifications before substitution.
Key specifications for MS51964-64: Thread Direction: RIGHT-HAND; Thread Series Designator: UNF; Surface Treatment: ZINC AND CHROMATE OVERALL; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.