Ball Valve

Model / MPN: S311-3A-S1 | NSN: 4820-01-495-8103

A multi-ported, nonlubricated valve designed to provide straight through flow or ability to direct a number of flows or pressure through a single valve. The flow is controlled by the rotation of a ported ball within a suitable ported sea (s) . The ball is usually engaged by a stem. It is normally operated in an open or closed position. Excludes valve, check.

Product Details

NATO Stock Number

4820-01-495-8103

Sold in multiples of

1 EA

DEMIL

End Application

Arleigh burke class ddg

Valve Operation Method

Manual

Part Name Assigned By Controlling Agency

1/2 in. Ball valve, sst. Construction, sch. 40 sw. Monel stem, with bnl-sw-1 limit switch

Material

Nickel alloy 400 stem

Material

Plastic polytetrafluoroethylene seat

Material

Stainless steel body

Material Specification

L-p-403 federal specification single material response seat

Material Specification

Qq-n-281 cl. A federal specification single material response stem

Material Specification

Qq-s-763 cl. 316, cond. A federal specification single material response body

S311 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7MC18T9042	Valve, Ball	1	EA	04/30/2018
SPE7MC21T9430	Valve, Ball	1	EA	03/15/2021
SPE7MC21T089Q	Valve, Ball	2	EA	05/06/2021

Pricing and Availability

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S311-3A-S1 Cross Reference

HBV-A2-04-0007
HBV-A2-04-0007 ASSY S311-3A-S1