Home · FSC 5331 O-Ring · NSN 5331-01-437-6218

NSN 5331-01-437-6218 — O-Ring

NIIN 01-437-6218 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 5331-01-437-6218 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 4 manufacturer part numbers from 4 CAGE codes, including Society Of Automotive Engineers Inc, Sae International, Naval Sea Systems Command; the primary is 211051588. The unit of issue is EA and the FLIS list price is $23.32.

The U.S. government has bought this item 8 times on record, 3 of them in the last 24 months, most recently on July 2, 2026 at $39.91 each from Blade Industrial Products Inc. The median unit price paid over 36 months is $39.91. 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.

4

part numbers from 4 CAGEs

0

open solicitations, all agencies

3

government buys in 24 months · median $39.91

0

sellers with confirmed stock

Watch NSN 5331-01-437-6218: an email the morning the government solicits or buys it, or an AD names it. Free.
Know someone who should see this?

Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
AS3581-17381343Society Of Automotive Engineers Inc3 · Design control (vendor)9 · Reference only
AS3581-1730U583Sae International3 · Design control (vendor)2 · Fully interchangeable
SAE-AS35810U583Sae International3 · Design control (vendor)1 · Not fully interchangeable
21105158853711Naval Sea Systems Command5 · Secondary reference2 · Fully interchangeable
M83248/2-173D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Jul 2, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Jul 2, 2026Blade Industrial Products Inc 1JYT18$39.91DlaSPE7L126P8622
Jun 25, 2026Dbr Industries, Inc. 1K69750$6.73DlaSPE7M026P3501
Jul 14, 2025Dbr Industries, Inc. 1K6977$42.49DlaSPE7L025V1854
May 29, 2020Dbr Industries, Inc. 1K6979$17.51DlaSPE7L020V6229
Jul 23, 2015Dbr Industries, Inc. 1K6978$10.00DlaSPE5E815M4532
Mar 23, 2012Seals & Packings, LLC 0XK264$18.00DlaSPM5M112V2013
Apr 2, 2009Seals & Packings, LLC 0XK2612$8.05DlaSPM7M109M4620
Mar 12, 2009Dbr Industries, Inc. 1K6974$31.25DlaSPM5M209V1949

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 211051588.

Request 211051588

No account needed. Goes to the sellers who carry this number or its family.

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

DLA management data

FLIS unit price
$23.32
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Cross-Sectional Height
INCHES MINIMUM 0.100 AND INCHES MAXIMUM 0.106
Center Hole Diameter
INCHES MINIMUM 8.437 AND INCHES MAXIMUM 8.537
Material
RUBBER FLUOROCARBON CLASS FPM

Related stock numbers

Other NSNs filed under the same part numbers.

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.

Get the daily Market Pulse

New DLA RFQs, SAM.gov notices, yesterday's awards and FAA directives, weekday mornings. Free, one click to leave.