The Bolt,machine, cataloged under National Stock Number 5306-00-550-0721, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-550-0721 |
| Primary Part Number | FFB575TYPE1GRADE1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Material | STEEL OVERALL |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Thread Quantity Per Inch | 13 |
| Head Height | 0.308 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Width Between Flats | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Fastener Length | 8.820 INCHES MINIMUM AND 9.120 INCHES MAXIMUM IN |
| Thread Length | 1.500 INCHES MINIMUM IN |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Head Style | SQUARE |
| Thread Class | 2A A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB575TYPE1GRADE1 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| MS35355-141 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5306-00-550-0721 is a Bolt,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-550-0721 has 2 cross-referenced part numbers: FFB575TYPE1GRADE1 (Federal Specifications Promulgated by General Services Administration Washington DC), MS35355-141 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).
There are 12 known substitutes for 5306-00-550-0721: 5306-00-425-0607, 5306-00-550-3109, 5306-00-550-3111 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB575TYPE1GRADE1: Material: STEEL OVERALL; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Diameter: 0.500 INCHES IN. 17 total characteristics are documented in the Federal Logistics Information System.