Home · FSC 6680 Liquid And Gas Flow, Liquid Level, And Mechanical Motion Measuring Instruments · NSN 6680-01-535-1407

NSN 6680-01-535-1407 — Probe,Oil Sensing

NIIN 01-535-1407 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

Buying rhythm

from 6 government buys since 2017

The government has bought this item about every 1.2 years (irregular, gaps vary ±116%). Last buy Sep 21, 2026. The gaps are too uneven to put a window on the next one.

How well this works: for irregular items, "next buy about one typical gap after the last, give or take 152 days" caught the actual next buy 31% of the time across 21,749 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 6680-01-535-1407 is the national stock number for a probe,oil sensing in federal supply class 6680 (Liquid And Gas Flow, Liquid Level, And Mechanical Motion Measuring Instruments). It cross-references to 1 manufacturer part number from 1 CAGE code, including Compass Water Solutions, Inc; the primary is OSPD0074. The unit of issue is EA and the FLIS list price is $451.55.

The U.S. government has bought this item 6 times on record, 2 of them in the last 24 months, most recently on September 21, 2026 for $324 from Phoenix Trading Inc.. The median unit price paid over 36 months is $339.00. 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 $339.00

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
OSPD0074	1QA97	Compass Water Solutions, Inc	3 · Design control (vendor)	2 · Fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 21, 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 21, 2026	Phoenix Trading Inc. 4LF36			$324	Dla	SPE4A526P7976 » Award/Basic Package View
Jul 14, 2025	Patterson Cooney Inc 9U103	1	$339.00		Dla	SPE4A625V424W
Sep 11, 2019	Separator Spares & Equipment LLC 69WR8	1	$250.00		Dla	SPE4A619V406V
Jul 29, 2019	Separator Spares & Equipment LLC 69WR8	1	$250.00		Dla	SPE4A619V318F
Oct 12, 2017	Separator Spares & Equipment LLC 69WR8	1	$244.78		Dla	SPE4A418V0359
Aug 23, 2017	Jgils, LLC 1N8T8	1	$277.92		Dla	SPE4A617PK839

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 6 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 OSPD0074.

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

DLA management data

FLIS unit price: $451.55
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Effective: Feb 1, 2026

Item characteristics

Overall Height: INCHES NOMINAL 10.625
End Item Identification: HELI-SEP OILY WATER SEPARATOR, MODEL 2500
Special Features: TWO RODS 8.5 IN. LENGTH, 0.188 IN. DIA; 1 ROD 2.5 IN. LENGTH, 0.188 IN. DIA; ELECTRODE HOLDER W/HARDWARE P/N PS-3; ORING 1, P/N HPON0074
Proprietary Characteristics: PACS

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.