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

Socket Head Cap Screw

Model / MPN: 427531-1 | NSN: 5305-01-352-8462
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Product Details
NATO Stock Number
5305-01-352-8462
Sold in multiples of
25 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.707 inches
Fastener Length
0.875 inches
Head Style
Fillister
Head Diameter
1.000 inches
Head Height
0.125 inches
Internal Drive Style
Hexagon
Thread Diameter
0.562 inches
Width Across Flats
Between 0.312 inches and 0.315 inches
Thready Qty Per Inch (tpi)
12
Material
Steel comp 4140 or steel comp e4340
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response
Thread Series Designator
Unc
427531 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5EC15T1140 Screw, Cap, Socket He 257 EA 09/28/2015
SPE7M218T4932 Screw, Cap, Socket He 676 EA 09/04/2018
SPE7M219T1348 Screw, Cap, Socket He 301 EA 12/21/2018

Pricing and Availability

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427531-1 Cross Reference
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