The Bolt,machine, cataloged under National Stock Number 5306-00-272-4440, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Norfolk Naval Shipyard. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-272-4440 |
| Primary Part Number | 7128 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Norfolk Naval Shipyard |
| Status | ACTIVE |
| Head Style | HEXAGON |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Fastener Length | 1.062 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 13 |
| Width Between Flats | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Features Provided | UNFINISHED HEAD |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | MIL-S-890,ALLOY NO. 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Departure From Cited Designator | AS MODIFIED BY MATERIAL,HEAD HEIGHT AND THD LENGTH |
| Head Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Material | STEEL OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7128 | Norfolk Naval Shipyard (USA) |
NSN 5306-00-272-4440 is a Bolt,machine, manufactured by Norfolk Naval Shipyard, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-272-4440 has 1 cross-referenced part number: 7128 (Norfolk Naval Shipyard).
There are 8 known substitutes for 5306-00-272-4440: 5340-00-161-1180, 5331-01-145-7947, 4530-01-323-5300 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7128: Head Style: HEXAGON; Thread Length: 0.875 INCHES MINIMUM IN; Fastener Length: 1.062 INCHES NOMINAL IN; Thread Class: 3A A. 15 total characteristics are documented in the Federal Logistics Information System.