The Bolt,shoulder, cataloged under National Stock Number 5306-00-285-8426, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-285-8426 |
| Primary Part Number | 1285129-103 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co |
| Status | ACTIVE |
| Extended Washer Thickness | 0.180 INCHES NOMINAL IN |
| Head Height | 0.953 INCHES NOMINAL IN |
| Shoulder Length | 6.787 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | LC+77-2035,FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 2.250 INCHES NOMINAL IN |
| Shoulder Diameter | 1.4990 INCHES MINIMUM AND 1.4998 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.169 INCHES MINIMUM AND 0.175 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | C-05-1190,FSCM 36659 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.296 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 7.781 INCHES MINIMUM AND 7.791 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| 1285129-103 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 1285129-103 | 3/2 Design control — primary reference U.S. Government activity |
| 1285129-103 | 5/9 Secondary reference Bomar Engineering Inc |
NSN 5306-00-285-8426 is a Bolt,shoulder, manufactured by Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-285-8426 has 1 manufacturer part number on file: 1285129-103 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co).
Key specifications for 1285129-103: Extended Washer Thickness: 0.180 INCHES NOMINAL IN; Head Height: 0.953 INCHES NOMINAL IN; Shoulder Length: 6.787 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: LC+77-2035,FSCM 36659 MFR REF 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.