The Bolt,machine, cataloged under National Stock Number 5306-00-021-7840, 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 1 commercial cross-reference 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 | 5306-00-021-7840 |
| Primary Part Number | FFB575 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 1.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Material | STEEL OVERALL |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Head Height | 0.568 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Thread Length | 2.000 INCHES MINIMUM IN |
| Head Style | SQUARE |
| Features Provided | UNFINISHED HEAD |
| Thread Quantity Per Inch | 9 |
| Width Between Flats | 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Fastener Length | 3.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FFB575 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5306-00-021-7840 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 5306-00-021-7840 has 1 cross-referenced part number: FFB575 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 12 known substitutes for 5306-00-021-7840: 5306-00-011-1195, 5306-00-013-1303, 5306-00-018-6682 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for FFB575: Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS; Thread Class: 2A A; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 17 total characteristics are documented in the Federal Logistics Information System.