Home · FSC 5331 O-Ring · NSN 5331-01-146-3609

NSN 5331-01-146-3609 — O-Ring

NIIN 01-146-3609 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 8 government buys since 2017

The government has bought this item about every 1.1 years (loose, gaps vary ±70%). Last buy Jun 28, 2024. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 34,631 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 5331-01-146-3609 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 10 manufacturer part numbers from 7 CAGE codes, including Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M, Naval Inventory Control Point Mechanicsburg, Vacco Industries; the primary is 5331PL2247994. The unit of issue is EA and the FLIS list price is $2.51.

The U.S. government has bought this item 16 times on record, most recently on June 28, 2024 at $1.80 each from Dbr Industries, Inc.. The median unit price paid over 36 months is $1.82. 1 solicitation is open right now, the soonest due October 5, 2026 for 1,660 EA. 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.

10

part numbers from 7 CAGEs

1

open solicitation, all agencies

0

government buys in 24 months · median $1.82

0

sellers with confirmed stock

Watch NSN 5331-01-146-3609: 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
MS28784-1496906Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M2 · Item ident. reference2 · Fully interchangeable
58-014-15CP03950Naval Inventory Control Point Mechanicsburg5 · Secondary reference1 · Not fully interchangeable
A180-014MILP2573299517Vacco Industries5 · Secondary reference1 · Not fully interchangeable
A180-014MILP25732CP03950Naval Inventory Control Point Mechanicsburg5 · Secondary reference1 · Not fully interchangeable
F3C10089 ITEM 1799517Vacco Industries5 · Secondary reference1 · Not fully interchangeable
F3C10089 ITEM 17CP03950Naval Inventory Control Point Mechanicsburg5 · Secondary reference1 · Not fully interchangeable
MS28775-01481343Society Of Automotive Engineers Inc5 · Secondary reference9 · Reference only
MS28775-01496906Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M5 · Secondary reference9 · Reference only
MS28775-0140U583Sae International5 · Secondary reference1 · Not fully interchangeable
MS28775-014CP03950Naval Inventory Control Point Mechanicsburg5 · Secondary reference1 · Not fully interchangeable
Z00.N7423079014F0086Daher Aerospace - Ex Socata5 · Secondary reference9 · Reference only
5331PL22479949009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Jun 28, 2024Dbr Industries, Inc. 1K697280$1.80DlaSPE7L124V7065
Mar 29, 2024H C Merchandisers, Inc. 53037264$1.83DlaSPE7L024V3251
May 31, 2022Dbr Industries, Inc. 1K6971,014$1.84DlaSPE7L122V7524
Apr 14, 2021Fitzhugh Clifton 0KKV2862$1.42DlaSPE7L121V4296
Jan 24, 2019Fitzhugh Clifton 0KKV2817$2.06DlaSPE5E319P0635
Nov 20, 2018Fitzhugh Clifton 0KKV21,298$1.72DlaSPE5E419V1587
May 31, 2018Dbr Industries, Inc. 1K6971,171$1.09DlaSPE5E318P0927
Mar 21, 2017Fitzhugh Clifton 0KKV2800$0.88DlaSPE5E817P2258
Sep 12, 2013Dbr Industries, Inc. 1K6971,111$0.62DlaSPM5E813M8190
Nov 9, 2011Dbr Industries, Inc. 1K6971,398$0.65DlaSPM5M212M0346
Aug 17, 2010Fitzhugh Clifton 0KKV21,648$0.69DlaSPM5M210M3361
Aug 17, 2010Fitzhugh Clifton 0KKV2532$0.72DlaSPM5M110MV120
May 14, 2010Fitzhugh Clifton 0KKV21,000$0.72DlaSPM5M110V1010
Feb 4, 2010Dbr Industries, Inc. 1K697115$2.00DlaSPM5L110V0585
May 5, 2009Fitzhugh Clifton 0KKV2167$1.29DlaSPM5M109V1433
Apr 17, 2008Fitzhugh Clifton 0KKV2300$1.15DlaSPM5M108V2070

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 16 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 5331PL2247994.

Request 5331PL2247994

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

DLA management data

FLIS unit price
$2.51
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Outside Diameter
INCHES NOMINAL 0.629
Temp Rating
FAHRENHEIT -65.0 AND FAHRENHEIT 275.0
Cross-Sectional Height
INCHES MINIMUM 0.067 AND INCHES MAXIMUM 0.073
Center Hole Diameter
INCHES MINIMUM 0.484 AND INCHES MAXIMUM 0.494
Criticality Code Justification
ZZZW
Material
RUBBER SYNTHETIC
Departure From Cited Document
CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D

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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