The Bolt,machine, cataloged under National Stock Number 5306-00-579-4948, 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 19 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-579-4948 |
| Primary Part Number | MILB857TYPEACLASSC |
| 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 |
| Thread Direction | RIGHT-HAND |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Width Between Flats | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Class | 1A A |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Height | 0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Thread Length | 1.500 INCHES MINIMUM IN |
| Fastener Length | 6.500 INCHES NOMINAL IN |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Features Provided | UNFINISHED HEAD |
| Nondefinitive Spec/std Data | 1 GRADE |
| Thread Quantity Per Inch | 13 |
| Head Style | SQUARE |
| Departure From Cited Designator | AS MODIFIED BY SQUARE HEAD BOLT |
| Material | STEEL OVERALL |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Surface Treatment Document and Classification | QQ-Z-325,TY 2,CL 2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MILB857TYPEACLASSC | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5306-00-579-4948 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 5306-00-579-4948 has 1 cross-referenced part number: MILB857TYPEACLASSC (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 8 known substitutes for 5306-00-579-4948: 5306-00-579-1469, 5310-00-188-7831, 5310-00-188-7833 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for MILB857TYPEACLASSC: Thread Direction: RIGHT-HAND; Hardness Rating: 95.0 ROCKWELL B MAXIMUM OVERALL; Nominal Thread Diameter: 0.500 INCHES IN; Width Between Flats: 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. 20 total characteristics are documented in the Federal Logistics Information System.