The Bolt,machine, cataloged under National Stock Number 5306-00-177-5675, 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 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-177-5675 |
| Primary Part Number | FFB571 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Thread Quantity Per Inch | 16 |
| Head Style | HEXAGON |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Length | 1.000 INCHES MINIMUM IN |
| Width Between Flats | 0.562 INCHES MAXIMUM IN |
| Hardness Rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| Nondefinitive Spec/std Data | B2 TYPE |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.000 INCHES MAXIMUM IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | FINISHED HEAD |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Height | 0.252 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-177-5675 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 5306-00-177-5675 has 2 cross-referenced part numbers: FFB571 (Federal Specifications Promulgated by General Services Administration Washington DC), AN65-6-20 (Aeronautical Standards Group Dept of Navy and Air Force).
There is 1 known substitute for 5306-00-177-5675: 5306-00-582-5952. Verify interchangeability with system specifications before substitution.
Key specifications for FFB571: Thread Quantity Per Inch: 16; Head Style: HEXAGON; Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS; Thread Length: 1.000 INCHES MINIMUM IN. 19 total characteristics are documented in the Federal Logistics Information System.