The Bolt,machine, cataloged under National Stock Number 5306-00-916-2405, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartzell Propeller Llc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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 | 5306-00-916-2405 |
| Primary Part Number | A-1372 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Extended Washer Diameter | 0.625 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 20 |
| Fastener Length | 2.125 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Series Designator | UNF |
| Head Height | 0.438 INCHES NOMINAL IN |
| Grip Length | 1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Features Provided | FINISHED HEAD |
| Material Document and Classification | SAE ASSN STD 1ST MATERIAL RESPONSE OR SAE ASSN STD 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Material | STEEL COMP 4042 OR STEEL COMP 8637 OR STEEL COMP 8740 OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Length | 0.525 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Extended Washer Thickness | 0.156 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 968.29.11.310 | Pilatus Aircraft Ltd (CHE) |
| 57A1372 | Hartzell Propeller Llc (USA) |
| A-1372 PRIMARY | Hartzell Propeller Llc (USA) |
| A1372 | Technic Aviation (FRA) |
NSN 5306-00-916-2405 is a Bolt,machine, manufactured by Hartzell Propeller Llc, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-916-2405 has 4 cross-referenced part numbers: 968.29.11.310 (Pilatus Aircraft Ltd), 57A1372 (Hartzell Propeller Llc), A-1372 (Hartzell Propeller Llc), A1372 (Technic Aviation).
There are 3 known substitutes for 5306-00-916-2405: 4730-00-469-1984, 6610-00-611-8635, 6625-01-223-3420. Verify interchangeability with system specifications before substitution.
Key specifications for A-1372: Extended Washer Diameter: 0.625 INCHES NOMINAL IN; Thread Quantity Per Inch: 20; Fastener Length: 2.125 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 18 total characteristics are documented in the Federal Logistics Information System.