NAS577B5A Self Locking Floating Barrel Nut

Part Type: Floating self-locking barrel nut

Standard: NAS577 (Professional/Industrial Association Standard 80205)

Material: Steel

Material Specification: MIL-S-5626 (1st material response), MIL-S-6049 (2nd material response), or MIL-S-5000 (3rd material response)

Thread Size: 0.312 in

Thread Series: UNJF (fine thread with external controlled root radius)

Thread Class: 3B

Thread Direction: Right-hand

Threads per Inch (TPI): 24

Nut Style: Floating self-locking barrel

Locking Feature: Prevailing torque all-metal design

Hardness Rating: 36–43 Rockwell C

Lubrication: Dry film lubricant

Nut Diameter: 0.587–0.590 in

Nut Height: 0.468 in

Nut Length: 0.678–0.698 in

Nut Counterbore Diameter: 0.344 in / 0.354 in

Nut Counterbore Depth: 0.120–0.130 in

Barrel Height: 0.350–0.360 in

Surface Treatment: Cadmium plated

Surface Treatment Specification: QQ-P-416, Federal Specification, single treatment

Temperature Rating: 450°F