The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-351-3519, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-351-3519 |
| Primary Part Number | MB211-5D10 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.051 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| Head Height | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Fastener Length | 1.148 INCHES MINIMUM AND 1.178 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Thread Length | 0.455 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.383 INCHES MINIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.940 INCHES MINIMUM AND 0.980 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| MB211-5D10 | Hi-Shear Corporation (USA) |
| AIC1655-5D10 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MB211-5D10 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PBF1422-5D10 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCG0017-5D10 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| SII1185-5D10 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 123711-5D10 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 03A100-5D10 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 03A100-5D10 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| X385-5D10 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| VS3320-5D10 | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| VS3320-5D10 | 3/2 Design control — primary reference U.S. Government activity |
| X385-5D10 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-351-3519 is a Bolt,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-351-3519 has 10 manufacturer part numbers on file: MB211-5D10 (Hi-Shear Corporation), AIC1655-5D10 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), MB211-5D10 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), PBF1422-5D10 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VCG0017-5D10 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 5 more.
Key specifications for MB211-5D10: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.051 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN. 24 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.