The Bolt,square Neck, cataloged under National Stock Number 5306-01-696-8078, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-696-8078 |
| Primary Part Number | AEB11C500B50CH2A31 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Neck Length | 0.28 INCHES NOMINAL IN |
| Head Height | 0.27 INCHES NOMINAL IN |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTM A380 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.950 INCHES NOMINAL IN |
| Material Document and Classification | ASTM F593 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B18.24-2015 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Neck Width | 0.52 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.094 INCHES NOMINAL 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 |
|---|---|
| AEB11C500B50CH2A31 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| ASME B18.24 | 5/1 Secondary reference The American Society of Mechanical Engineers |
NSN 5306-01-696-8078 is a Bolt,square Neck, manufactured by The American Society of Mechanical Engineers, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-696-8078 has 1 manufacturer part number on file: AEB11C500B50CH2A31 (The American Society of Mechanical Engineers).
Key specifications for AEB11C500B50CH2A31: Neck Length: 0.28 INCHES NOMINAL IN; Head Height: 0.27 INCHES NOMINAL IN; Fastener Length: 2.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTM A380 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.