The Bolt,shoulder, cataloged under National Stock Number 5306-01-608-3260, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-608-3260 |
| Primary Part Number | HS4243V9-20 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.133 INCHES NOMINAL IN |
| Head Height | 0.557 INCHES NOMINAL IN |
| Fastener Length | 2.26 INCHES MINIMUM AND 2.29 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.928 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Thread Length | 1.025 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 260 MEGAPASCALS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | COBALT COMP MP-35-N OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| SII1263V9-20 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 9239762757 | Acufast Aircraft Products (USA) |
| 76924V9-20 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HS4243V9-20 PRIMARY | The Boeing Company (USA) |
| SLB351V9-20 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| AIC6924V9-20 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
NSN 5306-01-608-3260 is a Bolt,shoulder, manufactured by The Boeing Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-608-3260 has 5 manufacturer part numbers on file: SII1263V9-20 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 9239762757 (Acufast Aircraft Products), 76924V9-20 (Sps Technologies, Llc Dba PB Fasteners), HS4243V9-20 (The Boeing Company), SLB351V9-20 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
Key specifications for HS4243V9-20: Extended Washer Thickness: 0.133 INCHES NOMINAL IN; Head Height: 0.557 INCHES NOMINAL IN; Fastener Length: 2.26 INCHES MINIMUM AND 2.29 INCHES MAXIMUM IN; Extended Washer Diameter: 0.928 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN. 14 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.