Home · FSC 5331 O-Ring · NSN 5331-00-436-3369

NSN 5331-00-436-3369 — O-Ring

NIIN 00-436-3369 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS

NSN 5331-00-436-3369 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 3 manufacturer part numbers from 3 CAGE codes, including Parker-Hannifin Corporation, Caterpillar Inc, Mil-Tech Mfg Inc; the primary is 2-109N951-75. The unit of issue is EA and the FLIS list price is $1.94.

The U.S. government has bought this item 6 times on record, 1 of them in the last 24 months, most recently on March 26, 2025 at $1.46 each from Noble Supply & Logistics, LLC. The median unit price paid over 36 months is $1.46. 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 numbers from 3 CAGEs

open solicitations, all agencies

government buy in 24 months · median $1.46

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
2-109N951-75	09990	Parker-Hannifin Corporation	3 · Design control (vendor)	2 · Fully interchangeable
4J2506	11083	Caterpillar Inc	3 · Design control (vendor)	2 · Fully interchangeable
4J2506-00	58312	Mil-Tech Mfg Inc	5 · Secondary reference	9 · Reference only

Government demand

Nothing open right now. Last government buy Mar 26, 2025. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Buyer	Reference
Mar 26, 2025	Noble Supply & Logistics, LLC 1HEN9	1	$1.46	Dla	SPE4A525FABT8
Jul 21, 2023	Noble Supply & Logistics, LLC 1HEN9	2	$1.44	Dla	SPE4A623FBJ80
Mar 5, 2020	Artex Truck Center Inc 4EKA1	2	$0.77	Dla	SPE5E820V3801
Aug 5, 2014	Howco Distributing Co. 5E074	1,137	$0.78	Dla	SPE5E814V7732
Apr 16, 2014	Howco Distributing Co. 5E074	67	$0.86	Dla	SPE7M014V9408
Dec 22, 2000	Dbr Industries, Inc. 1K697	1	$110.00	Dla	SP054001MB644

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 2-109N951-75.

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

DLA management data

FLIS unit price: $1.94
Unit of issue: EA
Acquisition advice: J — Not stocked, central procurement
Source of supply: SMS
Shelf life code: Y
Effective: Oct 1, 2025

Item characteristics

Outside Diameter: INCHES MINIMUM 0.494 AND INCHES MAXIMUM 0.516
Temp Rating: FAHRENHEIT -25.0 AND FAHRENHEIT 275.0
Cross-Sectional Height: INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106
Center Hole Diameter: INCHES MINIMUM 0.294 AND INCHES MAXIMUM 0.304
Elongation Percentage: MAXIMUM 125
Hardness Rating: SHORE DUROMETER A NOMINAL 75.0
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

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.