The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-272-7172, 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 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-272-7172 |
| Primary Part Number | MS35455-138 |
| Item Name | Screw,cap,socket Head |
| 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 | CANCELLED |
| Nondefinitive Spec/std Data | 6 TYPE |
| Width Across Flats | 0.625 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Surface Finish | 125.0 MICROINCHES BEARING SURFACE OF HEAD |
| Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Thread Length | 2.250 INCHES MINIMUM IN |
| Thread Class | 3A A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Head Height | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Internal Drive Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 10 |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Head Diameter | 1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Head Style | FLAT CHAMFER |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS35455-138 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 138391 | General Motors Corp (USA) |
NSN 5305-00-272-7172 is a Screw,cap,socket Head, 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: cancelled.
NSN 5305-00-272-7172 has 2 cross-referenced part numbers: MS35455-138 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 138391 (General Motors Corp).
There are 2 known substitutes for 5305-00-272-7172: 4320-00-740-3687, 4820-01-289-1666. Verify interchangeability with system specifications before substitution.
Key specifications for MS35455-138: Nondefinitive Spec/std Data: 6 TYPE; Width Across Flats: 0.625 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN; Minimum Tensile Strength: 160000 POUNDS PER SQUARE INCH LBS; Surface Finish: 125.0 MICROINCHES BEARING SURFACE OF HEAD. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-272-7172 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.