Locked In Stud

Model / MPN: 878C-3MB-20 | NSN: 5307-00-980-7355

A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same diameter. It is designed to be locked in place by either a ring, lock, serrated or a ring, lock, keyed.

Product Details

NATO Stock Number

5307-00-980-7355

Sold in multiples of

1 EA

DEMIL

Thread Class

3a nut thread

Thread Class

3a stud thread

Thread Direction

Right-hand nut thread

Thread Direction

Right-hand stud thread

Thread Length

0.330 inches stud thread and 0.340 inches stud thread

Thread Length

0.365 inches nut thread and 0.385 inches nut thread

Locking Feature

Key inserts

Shoulder Diameter

Between 0.231 inches and 0.241 inches

Shoulder Length

Between 0.035 inches and 0.045 inches

Overall Length

Between 0.730 inches and 0.770 inches

Distance From Shoulder Portion To Nut End

Between 0.365 inches and 0.385 inches

Thready Qty Per Inch (tpi)

24 stud thread

Hardness Rating

Between 26.0 rockwell c and 32.0 rockwell c

Thread Size

0.312 inches stud thread

Material

Steel comp 4130

Material Specification

Mil-s-6758 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

Style Designator

Locked in

Thread Series Designator

Unf stud thread

878C Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE5E418T8529	Stud, Locked In	1	EA	04/09/2018
SPE5E418T9883	Stud, Locked In	2	EA	05/10/2018
SPE5E418T085T	Stud, Locked In	20	EA	06/14/2018

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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878C-3MB-20 Cross Reference

2-300-183-01
878C-3MB-30