Home · FSC 5331 O-Ring · NSN 5331-01-278-9488

NSN 5331-01-278-9488 — O-Ring

NIIN 01-278-9488 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-01-278-9488 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 1 manufacturer part number from 2 CAGE codes, including Geislinger Corporation, Eaton Corporation Dba Airflex Div Div Airflex; the primary is 307279. The unit of issue is EA and the FLIS list price is $178.73.

The U.S. government has bought this item 6 times on record, 1 of them in the last 24 months, most recently on September 28, 2026 for $532 from Phoenix Trading Inc.. 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 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
307279	1WTJ3	Geislinger Corporation	3 · Design control (vendor)	2 · Fully interchangeable
307279	99185	Eaton Corporation Dba Airflex Div Div Airflex	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Sep 28, 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 28, 2026	Phoenix Trading Inc. 4LF36			$532	Dla	SPE7M426V5931 » Award/Basic Package View
Apr 12, 2021	Robeck Fluid Power Co. 0YUR1	24	$128.12		Dla	SPE7M421P1010
Jul 31, 2015	Larkos Packing And Distribution Inc. 6PZL1	24	$39.50		Dla	SPE5E815V6999
Jul 3, 2013	Braketechnique Inc 0DNA9	11	$35.29		Dla	SPE5E413V0006
Jul 3, 2013	Braketechnique Inc 0DNA9	3	$47.35		Dla	SPE5E413V0009
Oct 8, 1992	Echelon Supply And Service, Inc. 61125	1	$20.68		Dla	DLA50093AA8560065

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 307279.

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

DLA management data

FLIS unit price: $178.73
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2025

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.