The Bolt,square Neck, cataloged under National Stock Number 5306-01-286-7181, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Viking Pump, Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-286-7181 |
| Primary Part Number | 2-065-025-375-00 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Viking Pump, Inc |
| Status | ACTIVE |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2-065-025-375-00 PRIMARY | Viking Pump, Inc (USA) |
| Reference | Meaning |
|---|---|
| 2-065-025-375C | 5/9 Secondary reference Viking Pump, Inc |
NSN 5306-01-286-7181 is a Bolt,square Neck, manufactured by Viking Pump, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-286-7181 has 1 manufacturer part number on file: 2-065-025-375-00 (Viking Pump, Inc).
Key specifications for 2-065-025-375-00: Fastener Length: 0.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN; Thread Direction: RIGHT-HAND; Thread Class: 3A A. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.