The Bolt,shear, cataloged under National Stock Number 5306-01-005-1821, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-005-1821 |
| Primary Part Number | 3M261-6-35 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.210 INCHES NOMINAL IN |
| Fastener Length | 2.704 INCHES NOMINAL IN |
| Thread Length | 0.516 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.188 INCHES NOMINAL IN |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL 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 |
|---|---|
| HS2601-6Z35 | Huck International, Inc (USA) |
| 3M261-6-35 PRIMARY | The Boeing Company Div Defense (USA) |
| AIC261M6-35 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 66501-6-35 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VS2938-6-35 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| HS2601-6Z35 | 5/9 Secondary reference U.S. Government activity |
| VS2938-6-35 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-005-1821 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-005-1821 has 5 manufacturer part numbers on file: HS2601-6Z35 (Huck International, Inc), 3M261-6-35 (The Boeing Company Div Defense), AIC261M6-35 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 66501-6-35 (Sps Technologies, Llc Dba PB Fasteners), VS2938-6-35 (Fairchild Fasteners Europe - Vsd Gmbh).
Key specifications for 3M261-6-35: Head Height: 0.210 INCHES NOMINAL IN; Fastener Length: 2.704 INCHES NOMINAL IN; Thread Length: 0.516 INCHES NOMINAL IN; Nominal Thread Diameter: 0.375 INCHES 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.