The Bolt,machine, cataloged under National Stock Number 5306-00-051-4091, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5306-00-051-4091 |
| Primary Part Number | B1821BH031F425N |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | American National Standards Institute Incorporated Dba American National Standards Institute |
| Status | CANCELLED |
| Width Between Flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Length | 0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN |
| Features Provided | FINISHED HEAD |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Head Style | HEXAGON |
| Thread Quantity Per Inch | 24 |
| Head Height | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Series Designator | UNF |
| Thread Class | 2A A |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material Document and Classification | ASTM A354, GRADE BD ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Fastener Length | 4.156 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment Document and Classification | ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Acquisition Status | CANCELLED |
| Successor | 5306-00-008-3693 |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B1821BH031F425N PRIMARY | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| MS90727-49 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| FF-S-85 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5306-00-051-4091 is a Bolt,machine, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-051-4091 has 3 cross-referenced part numbers: B1821BH031F425N (American National Standards Institute Incorporated Dba American National Standards Institute), MS90727-49 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 12 known substitutes for 5306-00-051-4091: 5306-00-225-9104, 5306-00-225-8516, 5306-00-225-9095 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B1821BH031F425N: Width Between Flats: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Length: 0.875 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN; Features Provided: FINISHED HEAD; Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-051-4091 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.