Details
99NM-02 self-locking hex nut with nylon insert, NS condition.
Part Number: 99NM-02
Part Type: Self-Locking Hex Nut
Condition: NS
Thread: 10-32 (.1900-32 UNJF-3B per ESNA spec)
The nylon locking insert replaced ESNA's earlier fiber insert, which is prone to cracking with age. AirCorps recommends nylon insert fasteners wherever possible. The 99NM-02 is a light-pattern self-locking hex nut with a red nylon locking insert, made from brass. It is the ESNA production equivalent of AN365B1032A and is the nut you want where weight matters and the joint stays below 250 F.
Photos are for reference only.
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