Home · FSC 5331 O-Ring · NSN 5331-01-351-2739

NSN 5331-01-351-2739 — O-Ring

NIIN 01-351-2739 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 19 government buys since 2017

The government has bought this item about every 4 months (irregular, gaps vary ±122%). Last buy Sep 25, 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 151 days" caught the actual next buy 31% of the time across 21,161 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 5331-01-351-2739 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 5 manufacturer part numbers from 6 CAGE codes, including Caterpillar Inc, Oshkosh Corp, Oshkosh Defense LLC; the primary is 10076639. The unit of issue is EA and the FLIS list price is $20.30.

The U.S. government has bought this item 20 times on record, 3 of them in the last 24 months, most recently on September 25, 2026 for $350,000 from Ursource, Inc. The median unit price paid over 36 months is $12.81. 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.

5

part numbers from 6 CAGEs

0

open solicitations, all agencies

3

government buys in 24 months · median $12.81

0

sellers with confirmed stock

Watch NSN 5331-01-351-2739: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

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

Part numberCAGEManufacturerReferenceVariation
8C523011083Caterpillar Inc3 · Design control (vendor)2 · Fully interchangeable
7HB47345152Oshkosh Corp5 · Secondary reference9 · Reference only
7HB47375Q65Oshkosh Defense LLC5 · Secondary reference2 · Fully interchangeable
8C-5230409BBNavantia - Propulsion Y Energia Motores - Cartagena5 · Secondary reference2 · Fully interchangeable
8C-52300141BNavantia, S.A., S.M.E.5 · Secondary reference2 · Fully interchangeable
9Y6915 ITEM 1111083Caterpillar Inc5 · Secondary reference2 · Fully interchangeable
10076639A486GNimikkeistokeskus Ncb Finland69 · Reference only

Government demand

Nothing open right now. Last government buy Sep 25, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Sep 25, 2026Ursource, Inc 8FF72$350,000DlaSPE7L126D63WM » Award/Basic Package View
Oct 30, 2025Factory Sales Of Texas, Inc. Dba Factory Sales Of Texas Inc 7RY101,353$12.25DlaSPE7L026F0604
Feb 10, 2025Factory Sales Of Texas, Inc. Dba Factory Sales Of Texas Inc 7RY101,015$12.81DlaSPE7L325V2892
Jul 29, 2024Olb Associates LLC 7MFD4778$14.99DlaSPE7L124P7989
Jul 3, 2024Larkos Packing And Distribution Inc. 6PZL1222$21.00DlaSPE7L124P5680
Jan 17, 2024Worldwide Equipment Inc 3HVN9653$11.55DlaSPE7L324F1621
Sep 29, 2023Worldwide Equipment Inc 3HVN9469$11.55DlaSPE7L323F8768
Aug 10, 2023Worldwide Equipment Inc 3HVN9313$11.55DlaSPE7L323F7536
Jun 16, 2023Worldwide Equipment Inc 3HVN9291$11.55DlaSPE7L323F6597
May 18, 2023Worldwide Equipment Inc 3HVN9219$11.55DlaSPE7L323F5951
Apr 20, 2023Worldwide Equipment Inc 3HVN986$11.55DlaSPE7L323F5479
Dec 2, 2022Worldwide Equipment Inc 3HVN936$11.08DlaSPE7L323F2584
Sep 6, 2022Worldwide Equipment Inc 3HVN989$11.08DlaSPE7L322F261V
Aug 12, 2022Worldwide Equipment Inc 3HVN954$11.08DlaSPE7L322F224Z
May 16, 2022Worldwide Equipment Inc 3HVN9149$11.08DlaSPE7L322F087X
Jan 31, 2022Worldwide Equipment Inc 3HVN9277$11.08DlaSPE7L122V4288
Nov 19, 2020Ohio Machinery Co 1Z458423$10.75DlaSPE7L321F4545
Feb 13, 2020Monmouth Marine Engines, Inc. 48CG93$22.22DlaSPE5E820V3294
Apr 17, 2017Caterpillar Inc 110835$13.91DlaSPM7LX15D000193XH
Apr 13, 2017Caterpillar Inc 1108370$13.91DlaSPM7LX15D000193NQ

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 20 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 10076639.

Request 10076639

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
$20.30
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.

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