A286 CRES NAS Tension Type Lockbolts
A286 CRES NAS lockbolts are designed for use in high-strength, high-temperature applications. The lockbolt 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.
| NAS Part Number Lockbolts | HFS Part Number Lockbolts | Description |
| NAS6946 -6952 | N/A | 100° MS24694 tension-flush head, pull-type lockbolts in 3/16 thru 3/8 diameters |
| NAS6955 – 6962 | N/A | 100° MS20426 tension-flush head, pull-type lockbolts in 5/32 thru 3/8 diameters |
| NAS6965 – 6972 | N/A | Tension-type protruding head, pull-type lockbolts in 5/32 thru 3/8 diameters |
| NAS Part Number Collars | HFS Part Number Collars | Description |
| NAS1080- | LC-C | 2024-T4 aluminum beaded collar for 5/32, 3/16 & 1/4 diameters |
| NAS1080P | 7LC-C | 2024-T4 aluminum beaded collar for 5/16 & 3/8 diameters |
| NAS1080MG | 2DC-M | Monel® alloy double-ended collar for 5/32 diameter only |
| NAS1080MK | 6DC-M | Monel® alloy double-ended collar for 3/16 thru 3/8 diameters |
| NAS1080UG | 2DC-EU | A286 CRES double-ended collar for 5/32 diameter only |
| NAS1080UK | 6DC-EU | A286 CRES double-ended collar for 3/16 thru 3/8 diameters |
Mechanical performance data for A286 CRES tension-type NAS lockbolts
| Fastener Diameter | Ultimate Tensile with NAS1080- Collars (lb.) | Ultimate Tensile with NAS1080P Collars (lb.) | Ultimate Tensile with NAS1080- , UG & UK Collars (lb.) | Double Shear Strength Based on 95 KSI (lb.) |
| 5/32 | 1100 | N/A | 1100 | 3610 |
| 3/16 | 2210 | N/A | 2210 | 5380 |
| 1/4 | 4080 | N/A | 4080 | 9300 |
| 5/16 | N/A | 6500 | 6500 | 14600 |
| 3/16 | N/A | 10100 | 10100 | 21000 |
Reference:
NAS1413 for lockbolt procurement and quality conformance requirements
NAS1080 for lockbolt collars
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