Home · FSC 5331 O-Ring · NSN 5331-00-251-4237

NSN 5331-00-251-4237 — O-Ring

NIIN 00-251-4237 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-00-251-4237 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 2 CAGE codes, including Parker-Hannifin Corporation, Zf Industrieantriebe Witten Gmbh; the primary is F73125-258. The unit of issue is EA and the FLIS list price is $1.31.

The U.S. government has bought this item 2 times on record, 1 of them in the last 24 months, most recently on September 10, 2026 for $3,631 from Dbr Industries, 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 numbers 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
TS33-258	91265	Parker-Hannifin Corporation	3 · Design control (vendor)	2 · Fully interchangeable
F73125-258	D9182	Zf Industrieantriebe Witten Gmbh	C	1 · Not fully interchangeable
T533-258	D9182	Zf Industrieantriebe Witten Gmbh	C	1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 10, 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 10, 2026	Dbr Industries, Inc. 1K697			$3,631	Dla	SPE7L126P9D60 » Award/Basic Package View
Oct 27, 1969	Parker-Hannifin Corporation 91265	50	$0.36		Dla	DSA50070MV006

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 2 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 F73125-258.

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

DLA management data

FLIS unit price: $1.31
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Shelf life code: Y
Effective: May 1, 2026

Item characteristics

Cross-Sectional Height: INCHES MINIMUM 0.130 AND INCHES MAXIMUM 0.138
Center Hole Diameter: INCHES MINIMUM 5.974 AND INCHES MAXIMUM 5.994
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.