A286 CRES NAS Shear-Type Lockbolts
A286 CRES NAS lockbolt fasteners are designed for use in high-strength, high-temperature applications. The lockbolt fastener is readily adaptable to high-volume production methods.
During installation, the collar is swaged into the lock grooves of the pin and forms a high-strength, vibration-resistant joint. The simple installation procedure reduces production time to a minimum, resulting in lower production costs.
The stump-type lockbolt fasteners are specifically designed for use with automated equipment. Automated systems install fasteners at a rate up to 10 times faster than hand-installed threaded fasteners.
| NAS Part Number Lockbolts | HFS Part Number Lockbolts | Description |
| NAS6974 – 6982 | SLS100-EU | 100° NAS1097 shear-flush head, stump-type lockbolts in 1/8 thru 3/8 diameters |
| NAS6984 – 6992 | SLSP-EU | Shear-type protruding head, stump-type lockbolts in 1/8 thru 3/8 diameters |
| NAS7004 – 7012 | S3L100-EU | 100° shear/tension intermediate flush head, pull-type lockbolts in 1/8 thru 3/8 diameters |
| NAS7014 – 7024 | S3LP-EU | Shear-type intermediate protruding head, pull-type lockbolts in 1/8 thru 3/8 diameters. |
| NAS Part Number Collars | HFS Part Number Collars | Description |
| NAS1080C | DC-C 1/8 & 5/32 6LC-C 3/16 – 3/8 | 2024-T4 aluminum, 1/8 & 5/32 collars are double-ended for stump only. 3/16 thru 3/8 are beaded collars for pull-type lockbolts |
| NAS1080G | 2DC-C | 2024-T4 aluminum double-ended collars 3/16 thru 3/8 only |
| NAS1080MG | 2DC-M | Monel® alloy double-ended collars for stump-type only 1/8 & 5/32 only |
| NAS1080MK | 6DC-M | Monel® alloy double-ended collars for stump-type only 3/16 thru 3/8 only |
| NAS1080UG | 2DC-EU | A286 CRES double-ended collars for stump-type 1/8 & 5/32 only |
| NAS1080UK | 6DC-EU | A286 CRES double-ended collars for stump-type 3/16 thru 3/8 only |
Mechanical performance data for A286 CRES shear-type NAS lockbolts
| Fastener Diameter | Ultimate Tensile with NAS1080C Collars (lb.) | Ultimate Tensile with NAS1080G Collars (lb.) | Ultimate Tensile with NAS1080UG, UK, MG and MK Collars (lb.) | Double Shear Strength (95KSI) (lb.) |
| 1/8 | 450 | N/A | 755 | 2300 |
| 5/32 | 705 | N/A | 1320 | 3610 |
| 3/16 | 1105 | 1410 | 1850 | 5380 |
| 1/4 | 2040 | 2490 | 3250 | 9300 |
| 5/15 | 3250 | 3250 | 5000 | 14600 |
| 3/8 | 5050 | 5050 | 7200 | 21000 |
Reference:
NAS1413 for lockbolt procurement and quality conformance requirements
NAS1080 for lockbolt collars
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