What parts does the WS-3 use?

The federal catalog ties 72 national stock numbers to the WS-3, most of them in supply classes 4140 (Fans, Air Circulators, And Blower Equipment). 1 of them have a DLA solicitation or award on record; the most-bought include 4140-01-728-0618 Impeller,Fan,Centri.

Who supplies WS-3 parts to the government?

No DLA award on these stock numbers is on record in the last 36 months.

Is the government buying WS-3 parts right now?

No DLA solicitation is open today on WS-3 stock numbers; 1 were issued in the last twelve months. 1 of the platform's stock numbers show supply-risk signals (few sources, long gaps between buys, or DMSMS notices). Each solicitation page shows the quantity, due date, the gates a seller must clear, and what was paid before.

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WS-3: parts, government demand, prices, suppliers

The federal catalog names the WS-3 as the end item on 72 stock numbers; 1 of them have a DLA solicitation or award on record. What the government buys for this aircraft, what it paid, who wins, and which parts are at supply risk. Rebuilt nightly; this page is from 2026-09-28.

stock numbers

with demand

open now

awards, 36 m

sellers here

at supply risk

Most-bought stock numbers

Ranked by DLA awards in the last 36 months, then open solicitations. Price is the last award.

NSN	Item	Awards 36 m	Open	Last paid	Sellers	Risk
4140-01-728-0618	Impeller,Fan,Centri	—	—	—	—	watch

WS-3 parts at supply risk

From the obsolescence watch: terminal codes, sources whose SAM registration has expired, single sources, years of solicitations without an award. Reasons in words; unverified is never counted as gone.

watch 254140-01-728-0618 Impeller,Fan,Centri — single approved source (registered in SAM); solicited in the last 12 months; no award in our record

Supply classes

4140 Fans, Air Circulators, And Blower Equipment 1

Sell into this platform

List the parts you hold and every DLA and SAM.gov request for a WS-3 stock number lands on your dashboard the morning it posts, ranked by your price edge. Free account →

About this page

A stock number is tied to the WS-3 when the federal catalog's item characteristics name it as the end item; spellings and series letters (KC-46A, F/A-22) are folded together. Demand and prices come from DLA DIBBS, vendors from the award record, risk from the obsolescence watch. Same page for every reader. Data, not advice.

Questions

What parts does the WS-3 use?: The federal catalog ties 72 national stock numbers to the WS-3, most of them in supply classes 4140 (Fans, Air Circulators, And Blower Equipment). 1 of them have a DLA solicitation or award on record; the most-bought include 4140-01-728-0618 Impeller,Fan,Centri.
Who supplies WS-3 parts to the government?: No DLA award on these stock numbers is on record in the last 36 months.
Is the government buying WS-3 parts right now?: No DLA solicitation is open today on WS-3 stock numbers; 1 were issued in the last twelve months. 1 of the platform's stock numbers show supply-risk signals (few sources, long gaps between buys, or DMSMS notices). Each solicitation page shows the quantity, due date, the gates a seller must clear, and what was paid before.

Numbers as of the nightly build. Data, not advice.