Home · FSC 4820 Valves, Nonpowered · NSN 4820-01-289-9510

NSN 4820-01-289-9510 — Valve,Stop-Check

NIIN 01-289-9510 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 4820-01-289-9510 is the national stock number for a valve,stop-check in federal supply class 4820 (Valves, Nonpowered). It cross-references to 4 manufacturer part numbers from 2 CAGE codes, including General Dynamics Land Systems - Canada Corporation, Williams Controls Inc; the primary is 10519088. The unit of issue is EA and the FLIS list price is $224.25.

The U.S. government has bought this item 1 time on record, 1 of them in the last 24 months, most recently on September 17, 2026 for $350,000 from Direct Line, Inc. No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

part numbers from 2 CAGEs

open solicitations, all agencies

government buy in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
10519088	56161	General Dynamics Land Systems - Canada Corporation	1 · Design control	2 · Fully interchangeable
WM781A	11331	Williams Controls Inc	3 · Design control (vendor)	2 · Fully interchangeable
WM781-118315	11331	Williams Controls Inc	C	1 · Not fully interchangeable
WM781A-118315	11331	Williams Controls Inc	C	1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 17, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Sep 17, 2026	Direct Line, Inc 0GE52			$350,000	Dla	SPE7L126D63UG » Award/Basic Package View

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 1 buy on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 10519088.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $224.25
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Thread Direction: ALL ENDS RIGHT-HAND
Valve Operation Method: MANUAL
Connection Type: ALL ENDS THREADED INTERNAL PIPE
Mounting Facility: PANEL
Nominal Thread Size: ALL ENDS INCHES 0.125
Thread Series Designator: ALL ENDS NPT
Furnished Items And Quantity: HANDLE 1

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.