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Worldwide distributor of NSN parts and consumables located in the USA.

Internal Wrenching Bolt

Model / MPN: WC331K8-4 | NSN: 5306-01-658-6681
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Product Details
NATO Stock Number
5306-01-658-6681
Sold in multiples of
1 EA
DEMIL
WC331K8 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E417T6524 Bolt, Internal Wrenc 8 EA 02/21/2017
SPE5E418T217G Bolt, Internal Wrenc 7 EA 08/20/2018
SPE5E418T275F Bolt, Internal Wrenc 3 EA 09/14/2018
SPE5E419T1186 Bolt, Internal Wrenc 2 EA 11/02/2018
SPE5E419T1843 Bolt, Internal Wrenc 1 EA 11/13/2018
SPE5E419T082X Bolt, Internal Wrenc 2 EA 06/27/2019
SPE5E419T180Z Bolt, Internal Wrenc 10 EA 08/22/2019

Pricing and Availability

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WC331K8-4 Cross Reference
  • MS21141U6-5P