The Bolt,ribbed Neck, cataloged under National Stock Number 5306-00-900-5157, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-900-5157 |
| Primary Part Number | 20X1806 |
| Item Name | Bolt,ribbed Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Head Height | 0.340 INCHES NOMINAL IN |
| Rib Included Angle | 80.0 DEGREES NOMINAL |
| Fastener Length | 2.410 INCHES NOMINAL IN |
| Thread Length | 1.270 INCHES NOMINAL IN |
| Rib Length | 0.500 INCHES NOMINAL IN |
| Rib Minor Diameter | 0.780 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | ROOF |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.814 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Rib Quantity | 32 |
| Head Diameter | 1.254 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-00-900-5157 is a Bolt,ribbed Neck, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-900-5157 has 2 manufacturer part numbers on file: 20X1806 (Meritor Heavy Vehicle Systems, Llc), 20X1806 (Meritor Industrial Products, Llc).
Key specifications for 20X1806: Head Height: 0.340 INCHES NOMINAL IN; Rib Included Angle: 80.0 DEGREES NOMINAL; Fastener Length: 2.410 INCHES NOMINAL IN; Thread Length: 1.270 INCHES NOMINAL IN. 16 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.