Home · FSC 4940 Miscellaneous Maintenance And Repair Shop Specialized Equipment · NSN 4940-01-552-9037

NSN 4940-01-552-9037 — Purging System,Dry Nitrogen

NIIN 01-552-9037 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 7 government buys since 2020

The government has bought this item about every 11 months (loose, gaps vary ±83%). Last buy Sep 24, 2026. The gaps are too uneven to put a window on the next one.

How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 34,631 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

NSN 4940-01-552-9037 is the national stock number for a purging system,dry nitrogen in federal supply class 4940 (Miscellaneous Maintenance And Repair Shop Specialized Equipment). It cross-references to 1 manufacturer part number from 1 CAGE code, including Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier; the primary is 3239AS360-1. The unit of issue is EA and the FLIS list price is $4,159.36.

The U.S. government has bought this item 8 times on record, 2 of them in the last 24 months, most recently on September 24, 2026 for $3,793 from Defense & Aerospace Manufacturing LLC. The median unit price paid over 36 months is $2,592.10. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part number from 1 CAGE

open solicitations, all agencies

government buys in 24 months · median $2,592.10

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
3239AS360-1	30003	Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier	3 · Design control (vendor)	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 24, 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 24, 2026	Defense & Aerospace Manufacturing LLC 8DV47			$3,793	Dla	SPE7M426V5890 » Award/Basic Package View
Jul 2, 2026	Defense & Aerospace Manufacturing LLC 8DV47	19	$2,592.10		Dla	SPE7M426V4477
Sep 1, 2023	Defense & Aerospace Manufacturing LLC 8DV47	3	$2,981.62		Dla	SPE7M023V5725
Mar 25, 2022	Defense & Aerospace Manufacturing LLC 8DV47	2	$2,787.12		Dla	SPE7MC22V5708
Mar 17, 2022	Echelon Supply And Service, Inc. 61125	2	$2,995.00		Dla	SPE7MC22P2223
Jan 21, 2022	Defense & Aerospace Manufacturing LLC 8DV47	4	$3,152.50		Dla	SPE7MC22V3605
Mar 4, 2021	Defense & Aerospace Manufacturing LLC 8DV47	1	$4,714.97		Dla	SPE7MC21V5575
Mar 23, 2020	Echelon Supply And Service, Inc. 61125	3	$4,348.00		Dla	SPE7MC20V5107

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 8 buys 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 3239AS360-1.

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

DLA management data

FLIS unit price: $4,159.36
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Part Name Assigned By Controlling Agency: (INAVY) NITROGEN PURGE SET,
Special Features: SUPPORT EQUIPMENT FOR THE AH-1Z; HH-1N HELICOPTER; SPEC GSE ALLOW; SE FOR AH-1Z

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.