Home · FSC 5331 O-Ring · NSN 5331-00-579-7545

NSN 5331-00-579-7545 — O-Ring

NIIN 00-579-7545 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

Buying rhythm

from 6 government buys since 2017

The government has bought this item about every 1.6 years (regular, gaps vary ±58%). Last buy Oct 30, 2025. If the rhythm holds, the next one falls between Sep 11, 2026 and Jun 6, 2028: a buy is due about now.

How well this works: for regular items, "next buy about one typical gap after the last, give or take 121 days" caught the actual next buy 42% of the time across 15,552 past buys, against 22% 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 5331-00-579-7545 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 39 manufacturer part numbers from 32 CAGE codes, including Pti Technologies Inc., Terex Corp, Sae International; the primary is 002657-00. The unit of issue is EA and the FLIS list price is $0.91.

The U.S. government has bought this item 15 times on record, 1 of them in the last 24 months, most recently on October 30, 2025 at $1.89 each from Blade Industrial Products Inc. The median unit price paid over 36 months is $0.69. 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.

39

part numbers from 32 CAGEs

0

open solicitations, all agencies

1

government buy in 24 months · median $0.69

0

sellers with confirmed stock

Watch NSN 5331-00-579-7545: 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
62309-2905228Pti Technologies Inc.3 · Design control (vendor)2 · Fully interchangeable
98101297907Terex Corp3 · Design control (vendor)9 · Reference only
MS28775-2380U583Sae International3 · Design control (vendor)2 · Fully interchangeable
SAE-AS287750U583Sae International3 · Design control (vendor)1 · Not fully interchangeable
1376-23-226A0199Leonardo S.P.A. - Electronics Division - Defence Business Area5 · Secondary reference2 · Fully interchangeable
1446-23891265Parker-Hannifin Corporation5 · Secondary reference2 · Fully interchangeable
2-238 N304-75C0308Parker Hannifin Gmbh O-Ring Division5 · Secondary reference9 · Reference only
2-238N304-7502697Parker-Hannifin Corp5 · Secondary reference9 · Reference only
2300-79128A0199Leonardo S.P.A. - Electronics Division - Defence Business Area5 · Secondary reference2 · Fully interchangeable
2764-C ITEM 1490800Romac Industries, Inc.5 · Secondary reference2 · Fully interchangeable
2765-C ITEM 1490800Romac Industries, Inc.5 · Secondary reference2 · Fully interchangeable
4067-70-23877308Parco, LLC5 · Secondary reference2 · Fully interchangeable
5330005797545SCY13E.C.A Etablissement Centrald'Approvisionnement Des Forces Armee5 · Secondary reference9 · Reference only
6230-1616603Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division5 · Secondary reference9 · Reference only
6230-1607128Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo5 · Secondary reference9 · Reference only
6230-163X894Control Flow, Inc.5 · Secondary reference2 · Fully interchangeable
7377-23825184Parker Hannifin Corporation Div O-Ring Division5 · Secondary reference2 · Fully interchangeable
88,5X3,53-24B7F8226Stacem5 · Secondary reference2 · Fully interchangeable
MS28775-23896906Military Standards Promulgated By Military Departments Under Authority Of Defense Standardization Manual 4120 3-M5 · Secondary reference9 · Reference only
MS28775-23834889Hunt Valve Company Inc Dba Union Flonetics5 · Secondary reference9 · Reference only
MS28775-23811859Hunt Valve Company, Inc.5 · Secondary reference2 · Fully interchangeable
MS28775-238F0229Le Joint Francais5 · Secondary reference9 · Reference only
MS28775-23881343Society Of Automotive Engineers Inc5 · Secondary reference9 · Reference only
MS28775-23844114Bae Systems Land & Armaments L.P.5 · Secondary reference2 · Fully interchangeable
MS28775-238ESH2313Eriks B.V.5 · Secondary reference9 · Reference only
N304-75-23802697Parker-Hannifin Corp5 · Secondary reference9 · Reference only
P48026-23870106Acushnet Rubber Company, Inc.5 · Secondary reference2 · Fully interchangeable
PRP568-238-4067-7077308Parco, LLC5 · Secondary reference2 · Fully interchangeable
SR 832-75-23895272Stillman Seal Corporation5 · Secondary reference2 · Fully interchangeable
10446943A486GNimikkeistokeskus Ncb Finland69 · Reference only
5331PL08288879009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only
1376-23-226T0720Fnss Savunma Sistemleri Anonim Sirketi8 · Manufacturer2 · Fully interchangeable
002657-00D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
287-11001P1D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
298750-5D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
364-0429-457D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
399-238-72D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
50-238D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
6002-105PC18243689Huntington Ingalls IncC1 · Not fully interchangeable
7-755-23800012361Grove U.S. LLCC1 · Not fully interchangeable
8-0SL-6 ITEM 9283130Air & Liquid Systems CorporationC1 · Not fully interchangeable
AN6230-16D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
AN6230-21D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
AS568-238-MILP2 5732D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
MIL-P-5516 CLB1 /8X31/2X33/4D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
MS28775-238D9182Zf Industrieantriebe Witten GmbhC1 · Not fully interchangeable
NG14145 ITEM 9283130Air & Liquid Systems CorporationC1 · Not fully interchangeable
SL-10616PC2.393232Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use Cage Code 0ubg9 For CatalogingC1 · Not fully interchangeable
SL-13507 PIECE93232Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use Cage Code 0ubg9 For CatalogingC1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Oct 30, 2025. Watch this NSN and we will email you when it is solicited.

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Oct 30, 2025Blade Industrial Products Inc 1JYT11,638$1.89DlaSPE7M226P0422
Jun 11, 2024Black Bay Aerospace LLC 7QEZ41,670$0.65DlaSPE7M224P3766
Apr 15, 2024Noble Supply & Logistics, LLC 1HEN91,670$0.69DlaSPE4A624FBH1D
Sep 12, 2022Boeing Distribution Services, Inc. 2V4846,299$0.87DlaSPE7M222P3285
Jul 24, 2019Blade Industrial Products Inc 1JYT15,207$0.52DlaSPE5E319P1776
Feb 27, 2017Dbr Industries, Inc. 1K6972,558$0.56DlaSPE5E817P1916
Jan 5, 2013American Packing & Rubber Inc Dba American Packing & Rubber 1XHZ710,000$0.16DlaSPM5E113MV070
May 10, 2012Parco, LLC 773084,000$0.30DlaSPM5E812M1134
Feb 7, 2012Parco, LLC 773083,000$0.30DlaSPM5M212M1051
Jun 21, 2010Seals & Packings, LLC 0XK26700$0.40DlaSPM5M210M2649
Jul 22, 2008Parco, LLC 773088,768$0.30DlaSPM5M208M2212
Nov 16, 2007Seals & Packings, LLC 0XK264,205$0.34DlaSPM5L108V0194
Mar 6, 2007Dbr Industries, Inc. 1K6973,781$0.37DlaSPM5M207V1492
Jan 24, 2007Seals & Packings, LLC 0XK261,062$0.33DlaSPM5L107V0391
Dec 16, 1998Dbr Industries, Inc. 1K6971,790$0.36DlaSP054099MD167

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 15 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 002657-00.

Request 002657-00

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
$0.91
Unit of issue
EA
Acquisition advice
D — Stocked, centrally managed (DLA)
Source of supply
SMS
Shelf life code
Y
Effective
Oct 1, 2025

Item characteristics

Outside Diameter
INCHES MINIMUM 3.730 AND INCHES MAXIMUM 3.794
Cross-Sectional Height
INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.143
Center Hole Diameter
INCHES MINIMUM 3.469 AND INCHES MAXIMUM 3.499
Material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

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.