The Bolt,shear, cataloged under National Stock Number 5306-00-151-5761, 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 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-151-5761 |
| Primary Part Number | GB511H18-56 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.280 INCHES NOMINAL IN |
| Head Height | 1.243 INCHES NOMINAL IN |
| Fastener Length | 5.422 INCHES MINIMUM AND 5.452 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 2.090 INCHES MINIMUM AND 2.100 INCHES MAXIMUM IN |
| Thread Length | 1.912 INCHES MINIMUM AND 1.962 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SPS-M-107 FSCM 56878 MFR REF 1ST MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.125 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.490 INCHES MINIMUM AND 3.510 INCHES MAXIMUM IN |
| Width Between Flats | 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN |
| Grip Diameter | 1.1225 INCHES MINIMUM AND 1.1240 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OR 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 |
|---|---|
| VS2003F18-56 | Howmet Global Fastening Systems Inc (USA) |
| GB511GF18-56 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GB511GF18-56 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511GF18-56 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GB511H18-56 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| GB511GF18-56 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| EWB22-18-56 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS2003F18-56 | 5/9 Secondary reference U.S. Government activity |
| EWB22-18-56 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-151-5761 is a Bolt,shear, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-151-5761 has 6 manufacturer part numbers on file: VS2003F18-56 (Howmet Global Fastening Systems Inc), GB511GF18-56 (Sps Technologies, Llc Dba PB Fasteners), GB511GF18-56 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511GF18-56 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), GB511H18-56 (Northrop Grumman Systems Corporation) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-513-1093. Verify interchangeability with system specifications before substitution.
Key specifications for GB511H18-56: Extended Washer Thickness: 0.280 INCHES NOMINAL IN; Head Height: 1.243 INCHES NOMINAL IN; Fastener Length: 5.422 INCHES MINIMUM AND 5.452 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 20 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.