The Bolt,shear, cataloged under National Stock Number 5306-01-252-8055, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-252-8055 |
| Primary Part Number | GB511EB6-24 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Head Height | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 1.981 INCHES MINIMUM AND 2.028 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.471 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 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 |
|---|---|
| GB511EB6-24 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GB511EB6-24 | Huck International, Inc (USA) |
| GB511EB6-24 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511EB6-24 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| GB511EB6-24 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511EB6-24 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BM17035-3-6-24-A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BM17035-3-6-24-A | 5/9 Secondary reference U.S. Government activity |
| PBF1290-6-24 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| AIC558-6-24 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| PBF1290-6-24 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba PB Fasteners |
| GB511EB6-24 | 5/2 Secondary reference U.S. Government activity |
| 79894D6-A24 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VCD0004-6-24F | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| VS3244F-6-24 | 5/9 Secondary reference U.S. Government activity |
| BM17035-6-24A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-01-252-8055 is a Bolt,shear, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-252-8055 has 6 manufacturer part numbers on file: GB511EB6-24 (Sps Technologies, Llc Dba PB Fasteners), GB511EB6-24 (Huck International, Inc), GB511EB6-24 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511EB6-24 (Northrop Grumman Systems Corporation), GB511EB6-24 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for GB511EB6-24: Surface Finish: 32.0 MICROINCHES THREADS; Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN; Fastener Length: 1.981 INCHES MINIMUM AND 2.028 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED 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.