The Bolt,machine, cataloged under National Stock Number 5306-00-174-9551, is classified within Federal Supply Class 5306 (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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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 | 5306-00-174-9551 |
| Primary Part Number | MILB857 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Class | 2A A |
| Head Style | HEXAGON |
| Thread Quantity Per Inch | 10 |
| Thread Length | 2.125 INCHES MINIMUM IN |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 100.0 ROCKWELL B NOMINAL OVERALL |
| Material | STEEL OVERALL |
| Width Between Flats | 1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Head Height | 0.469 INCHES NOMINAL IN |
| Fastener Length | 16.000 INCHES NOMINAL IN |
| Minimum Tensile Strength | 64000 POUNDS PER SQUARE INCH LBS |
| Surface Treatment Document and Classification | ASTM A 153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nondefinitive Spec/std Data | 1 TYPE AND 2 GRADE |
| Features Provided | FINISHED HEAD |
| Acquisition Status | ACTIVE |
| Successor | 5306-00-043-4568 (H2212PC9) |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MILB857 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-S-1222 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-1222 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5306-00-174-9551 is a Bolt,machine, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-174-9551 has 3 cross-referenced part numbers: MILB857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 12 known substitutes for 5306-00-174-9551: 5306-00-089-1425, 5306-00-226-4835, 5306-00-226-4839 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MILB857: Nominal Thread Diameter: 0.750 INCHES IN; Thread Class: 2A A; Head Style: HEXAGON; Thread Quantity Per Inch: 10. 17 total characteristics are documented in the Federal Logistics Information System.