The Bolt,shear, cataloged under National Stock Number 5306-01-439-9591, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-439-9591 |
| Primary Part Number | 03A099-4-13A |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Extended Washer Thickness | 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Head Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 1.258 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-83488, TY II, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.459 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Thread Length | 0.446 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.812 INCHES NOMINAL IN |
| Head Minor Diameter | 0.318 INCHES NOMINAL IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| MB210-4-13A | Hi-Shear Corporation (USA) |
| SLB187-4-13A | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 03A099-4-13A PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| VCG0016-4-13A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1421-4-13A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MB210-4-13A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC1654-4-13A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SII1182-4-13A | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| Reference | Meaning |
|---|---|
| VS3318-4-13A | 5/9 Secondary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| 03A099-4-13A | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 123710-4-13A | 5/2 Secondary reference U.S. Government activity |
| DF33004-4-13A | 5/9 Secondary reference U.S. Government activity |
| DF33004-4-13A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-439-9591 is a Bolt,shear, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-439-9591 has 8 manufacturer part numbers on file: MB210-4-13A (Hi-Shear Corporation), SLB187-4-13A (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 03A099-4-13A (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), VCG0016-4-13A (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF1421-4-13A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 3 more.
Key specifications for 03A099-4-13A: Extended Washer Thickness: 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Head Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 1.258 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-83488, TY II, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.