Home · FSC 5331 O-Ring · NSN 5331-00-279-4342

NSN 5331-00-279-4342 — O-Ring

NIIN 00-279-4342 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

Buying rhythm

from 18 government buys since 2018

The government has bought this item about every 33 days (irregular, gaps vary ±224%). Last buy Jul 30, 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 5331-00-279-4342 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 6 manufacturer part numbers from 4 CAGE codes, including Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M, Eriks B.V., Nimikkeistokeskus Ncb Finland; the primary is 10163249. The unit of issue is EA and the FLIS list price is $1.88.

The U.S. government has bought this item 19 times on record, 1 of them in the last 24 months, most recently on July 30, 2026 at $2.23 each from Blade Industrial Products Inc. The median unit price paid over 36 months is $2.23. 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.

6

part numbers from 4 CAGEs

0

open solicitations, all agencies

1

government buy in 24 months · median $2.23

0

sellers with confirmed stock

Watch NSN 5331-00-279-4342: 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
M25988/1-23081349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M2 · Item ident. reference2 · Fully interchangeable
MIL-DTL-25988/181349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M41 · Not fully interchangeable
M25988/1-230ESH2313Eriks B.V.5 · Secondary reference9 · Reference only
MILR2598881349Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M5 · Secondary reference9 · Reference only
10163249A486GNimikkeistokeskus Ncb Finland69 · Reference only
5331PL06550059009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only

Government demand

Nothing open right now. Last government buy Jul 30, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Jul 30, 2026Blade Industrial Products Inc 1JYT13,568$2.23DlaSPE7M226V4492
Aug 22, 2022Blade Industrial Products Inc 1JYT121,310$1.95DlaSPE7M422P4300
Aug 9, 2019Blade Industrial Products Inc 1JYT12,690$1.10DlaSPE5EY19F275M
May 16, 2019Blade Industrial Products Inc 1JYT11,232$1.10DlaSPE5EY19F142G
Apr 12, 2019Blade Industrial Products Inc 1JYT11,529$1.10DlaSPE5EY19F068Y
Mar 15, 2019Blade Industrial Products Inc 1JYT1737$1.10DlaSPE5EY19F9882
Feb 15, 2019Blade Industrial Products Inc 1JYT11,328$1.10DlaSPE5EY19F8681
Jan 17, 2019Blade Industrial Products Inc 1JYT11,388$1.10DlaSPE5EY19F6828
Dec 21, 2018Blade Industrial Products Inc 1JYT1382$1.10DlaSPE5EY19F4078
Nov 15, 2018Blade Industrial Products Inc 1JYT1926$1.10DlaSPE5EY19F2756
Oct 19, 2018Blade Industrial Products Inc 1JYT1816$1.10DlaSPE5EY19F1284
Sep 13, 2018Blade Industrial Products Inc 1JYT13,038$1.10DlaSPE5EY18F401U
Aug 21, 2018Blade Industrial Products Inc 1JYT11,016$1.10DlaSPE5EY18F352H
Jul 19, 2018Blade Industrial Products Inc 1JYT11,001$1.10DlaSPE5EY18F254H
Jun 15, 2018Blade Industrial Products Inc 1JYT1735$1.10DlaSPE5EY18F170R
May 17, 2018Blade Industrial Products Inc 1JYT11,026$1.10DlaSPE5EY18F042S
Apr 18, 2018Blade Industrial Products Inc 1JYT1534$1.10DlaSPE5EY18F9635
Apr 18, 2018Blade Industrial Products Inc 1JYT1411$1.10DlaSPE5EY18F9634
Mar 16, 2018Blade Industrial Products Inc 1JYT1242$1.10DlaSPE5EY18F8008

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 19 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 10163249.

Request 10163249

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
$1.88
Unit of issue
EA
Acquisition advice
D — Stocked, centrally managed (DLA)
Source of supply
SMS
Effective
Jun 5, 2026

Item characteristics

Outside Diameter
INCHES NOMINAL 2.762
Cross-Sectional Height
INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.143
Center Hole Diameter
INCHES MINIMUM 2.464 AND INCHES MAXIMUM 2.504
Elongation Percentage
MAXIMUM 125
Hardness Rating
SHORE DUROMETER A NOMINAL 70.0
Material
RUBBER FLUOROSILICONE CLASS FQ

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.

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