Home · FSC 5331 O-Ring · NSN 5331-01-615-4104

NSN 5331-01-615-4104 — O-Ring

NIIN 01-615-4104 · unit of issue EA · AAC D (stocked, centrally managed (dla)) · source of supply SMS

Buying rhythm

from 5 government buys since 2018

The government has bought this item about every 2.0 years (loose, gaps vary ±68%). Last buy Sep 17, 2026. The gaps are too uneven to put a window on the next one.

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 5331-01-615-4104 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including Society Of Automotive Engineers Inc, Sae International; the primary is M83485/1-157. The unit of issue is EA and the FLIS list price is $3.11.

The U.S. government has bought this item 11 times on record, 1 of them in the last 24 months, most recently on September 17, 2026 for $1,776 from Blade Industrial Products Inc. 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.

part numbers from 2 CAGEs

open solicitations, all agencies

government buy in 24 months

sellers with confirmed stock

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Cross-references

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

Part number	CAGE	Manufacturer	Reference	Variation
M83485/1-157	81343	Society Of Automotive Engineers Inc	3 · Design control (vendor)	9 · Reference only
M83485/1-157	0U583	Sae International	3 · Design control (vendor)	2 · Fully interchangeable
SAE-AS83485	0U583	Sae International	3 · Design control (vendor)	1 · Not fully interchangeable

Government demand

Nothing open right now. Last government buy Sep 17, 2026. Watch this NSN and we will email you when it is solicited.

What the government paid

Date	Vendor	Qty	Unit cost	Amount	Buyer	Reference
Sep 17, 2026	Blade Industrial Products Inc 1JYT1			$1,776	Dla	SPE7L126V234U » Award/Basic Package View
Aug 16, 2023	Dbr Industries, Inc. 1K697	518	$2.23		Dla	SPE7L123V8486
Sep 15, 2022	Boeing Distribution Services X, Inc. 2N935	110	$1.68		Dla	SPE7L322V078D
Mar 28, 2022	Dbr Industries, Inc. 1K697	165	$1.90		Dla	SPE7L322F9772
Jun 14, 2018	Blade Industrial Products Inc 1JYT1	1,574	$1.42		Dla	SPE5E818V7482
Oct 6, 2014	Blade Industrial Products Inc 1JYT1	1,801	$1.44		Dla	SPE5E815V0203
May 2, 2014	Excel Components LLC 6SL20	700	$1.48		Dla	SPE5E814V5090
Mar 10, 2014	Excel Components LLC 6SL20	341	$1.64		Dla	SPE5E814V3323
Feb 27, 2014	Excel Components LLC 6SL20	114	$1.68		Dla	SPE5E814V3100
Oct 23, 2013	Excel Components LLC 6SL20	114	$1.71		Dla	SPE5E814V0499
Jun 25, 2013	Government Sales Solutions, LLC 6PX29	114	$1.82		Dla	SPM5E813M6527

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 11 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 M83485/1-157.

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

DLA management data

FLIS unit price: $3.11
Unit of issue: EA
Acquisition advice: D — Stocked, centrally managed (DLA)
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Cross-Sectional Height: INCHES NOMINAL 0.103
Center Hole Diameter: INCHES NOMINAL 4.487
Material: RUBBER FLUOROCARBON CLASS FPM

Related stock numbers

Other NSNs filed under the same part numbers.

00-166-1076 · O-Ring
01-048-4997 · O-Ring
01-191-2523 · O-Ring
01-191-2524 · Packing,Preformed
01-197-0895 · O-Ring
01-199-2296 · O-Ring
01-201-2266 · O-Ring
01-218-7138 · O-Ring

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.