The Bolt,eccentric Head, cataloged under National Stock Number 5306-01-143-1750, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is M.s. Aerospace Inc. Dba Ms Aerospace Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-143-1750 |
| Primary Part Number | 65122-11227-104 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 5.295 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | SS8487,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Distance From Center of Head to Center of Shank | 2.648 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5000,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.052 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 1.250 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 | F |
| Part Number | Manufacturer |
|---|---|
| 65122-11227-104 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 65122-11227-104 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 65122-11227-104 | Airtronics, Llc (USA) |
| Reference | Meaning |
|---|---|
| 65122-11227-104 | 5/9 Secondary reference Tek Precision Co Limited |
NSN 5306-01-143-1750 is a Bolt,eccentric Head, manufactured by M.s. Aerospace Inc. Dba Ms Aerospace Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-143-1750 has 3 manufacturer part numbers on file: 65122-11227-104 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 65122-11227-104 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 65122-11227-104 (Airtronics, Llc).
Key specifications for 65122-11227-104: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 5.295 INCHES NOMINAL IN; Surface Treatment Document and Classification: SS8487,FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. 16 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.