The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-282-2198, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fabrication Specialty Inc Dba Fabrication Specialty Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-282-2198 |
| Primary Part Number | 1366AS649 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fabrication Specialty Inc Dba Fabrication Specialty Inc |
| Status | ACTIVE |
| Head Height | 0.280 INCHES NOMINAL IN |
| Fastener Length | 2.560 INCHES NOMINAL IN |
| Shoulder Diameter | 0.678 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Shape | RIBBED FIRST SHOULDER |
| Rib Length | 0.670 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Thread Series Designator | UNF |
| Head Diameter | 0.940 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 |
| Part Number | Manufacturer |
|---|---|
| 1366AS649 PRIMARY | Fabrication Specialty Inc Dba Fabrication Specialty Inc (USA) |
| Reference | Meaning |
|---|---|
| 1366AS649 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 3705784 | 5/9 Secondary reference General Motors Corp |
| 1366AS649 | 5/9 Secondary reference Alco Machine Co Inc |
NSN 5306-01-282-2198 is a Bolt,ribbed Shoulder, manufactured by Fabrication Specialty Inc Dba Fabrication Specialty Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-282-2198 has 1 manufacturer part number on file: 1366AS649 (Fabrication Specialty Inc Dba Fabrication Specialty Inc).
Key specifications for 1366AS649: Head Height: 0.280 INCHES NOMINAL IN; Fastener Length: 2.560 INCHES NOMINAL IN; Shoulder Diameter: 0.678 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Shape: RIBBED FIRST SHOULDER. 12 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.