The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-823-5858, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-823-5858 |
| Primary Part Number | 37821 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | L3harris Technologies, Inc. Div Space and Airborne Systems |
| Status | ACTIVE |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Material | NICKEL ALLOY K-500 OR NICKEL ALLOY 502 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 20 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Fastener Length | 1.438 INCHES NOMINAL IN |
| First Diameter From Head | 0.187 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Length | 0.376 INCHES MINIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.062 INCHES NOMINAL IN |
| Head Height | 0.218 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-823-5858 is a Bolt,externally Relieved Body, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-823-5858 has 2 cross-referenced part numbers: 37821 (L3harris Technologies, Inc. Div Space and Airborne Systems), 37783PC31 (L3harris Technologies, Inc. Div Space and Airborne Systems).
There are 3 known substitutes for 5306-00-823-5858: 5110-00-239-3270, 4820-01-436-4251, 5340-01-564-1527. Verify interchangeability with system specifications before substitution.
Key specifications for 37821: Width Between Flats: 0.438 INCHES NOMINAL IN; Material: NICKEL ALLOY K-500 OR NICKEL ALLOY 502 OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Head Style: HEXAGON. 15 total characteristics are documented in the Federal Logistics Information System.