The Bolt,machine, cataloged under National Stock Number 5306-00-891-8387, 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 19 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 | 5306-00-891-8387 |
| Primary Part Number | A-2051-1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Thread Quantity Per Inch | 24 |
| Fastener Length | 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Length | 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Features Provided | FINISHED HEAD |
| Hole Configuration Style | HEXAGON FLATS |
| Width Between Flats | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Hole Type | DRILLED |
| Hole Diameter | 0.047 INCHES NOMINAL IN |
| Hole Quantity | 1 |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Head Style | DISHED HEXAGON |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material Document and Classification | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNF |
| Thread Class | 3A A |
| Head Height | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5306-00-891-8387 is a Bolt,machine, manufactured by Hartzell Propeller Llc, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-891-8387 has 2 cross-referenced part numbers: A2051 (Hartzell Propeller Llc), A-2051-1 (Hartzell Propeller Llc).
There are 3 known substitutes for 5306-00-891-8387: 5310-00-058-2950, 3120-00-517-8482, 4933-01-437-7774. Verify interchangeability with system specifications before substitution.
Key specifications for A-2051-1: Thread Quantity Per Inch: 24; Fastener Length: 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN; Thread Length: 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN. 19 total characteristics are documented in the Federal Logistics Information System.