Home · FSC 5331 O-Ring · NSN 5331-01-078-5127

NSN 5331-01-078-5127 — O-Ring

NIIN 01-078-5127 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 18 government buys since 2017

The government has bought this item about every 2 months (irregular, gaps vary ±213%). Last buy Sep 17, 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 5331-01-078-5127 is the national stock number for an o-ring in federal supply class 5331 (O-Ring). It cross-references to 4 manufacturer part numbers from 5 CAGE codes, including Society Of Automotive Engineers Inc, Sae International, Associated Aerospace Activities Inc; the primary is 5331PL0937929. The unit of issue is EA and the FLIS list price is $2.23.

The U.S. government has bought this item 20 times on record, 4 of them in the last 24 months, most recently on September 17, 2026 for $756 from Dbr Industries, Inc.. The median unit price paid over 36 months is $1.64. 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.

4

part numbers from 5 CAGEs

0

open solicitations, all agencies

4

government buys in 24 months · median $1.64

0

sellers with confirmed stock

Watch NSN 5331-01-078-5127: 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
AS3085-25281343Society Of Automotive Engineers Inc3 · Design control (vendor)9 · Reference only
AS3085-2520U583Sae International3 · Design control (vendor)2 · Fully interchangeable
5843333-25251226Associated Aerospace Activities Inc5 · Secondary reference9 · Reference only
6843333-25273342Allison Transmission Inc5 · Secondary reference9 · Reference only
5331PL09379299009HJednolity Indeks Materialowy - Uniform Material Index69 · Reference only

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

DateVendorQtyUnit costAmountBuyerReference
Sep 17, 2026Dbr Industries, Inc. 1K697$756DlaSPE7L126P9F87 » Award/Basic Package View
Mar 19, 2026Noble Supply & Logistics, LLC 1HEN9187$1.64DlaSPE4A526FAKXD
Oct 16, 2025Noble Supply & Logistics, LLC 1HEN9162$1.64DlaSPE4A526FA64S
Feb 20, 2025Noble Supply & Logistics, LLC 1HEN9181$1.64DlaSPE4A525FAC64
Nov 17, 2019Dbr Industries, Inc. 1K69776$1.30DlaSPE5EY20F2698
Sep 13, 2019Dbr Industries, Inc. 1K69784$1.30DlaSPE5EY19F355K
Apr 12, 2019Dbr Industries, Inc. 1K69740$1.30DlaSPE5EY19F072S
Apr 5, 2019Dbr Industries, Inc. 1K697989$1.30DlaSPE5EY19F034W
Jan 17, 2019Dbr Industries, Inc. 1K697165$1.30DlaSPE5EY19F6655
Dec 21, 2018Dbr Industries, Inc. 1K69760$1.30DlaSPE5EY19F5518
Oct 19, 2018Dbr Industries, Inc. 1K69798$1.28DlaSPE5EY19F1308
Sep 13, 2018Dbr Industries, Inc. 1K69751$1.28DlaSPE5EY18F397V
Aug 21, 2018Dbr Industries, Inc. 1K69740$1.28DlaSPE5EY18F338M
Jul 19, 2018Dbr Industries, Inc. 1K69788$1.28DlaSPE5EY18F267K
Jun 15, 2018Dbr Industries, Inc. 1K697113$1.28DlaSPE5EY18F170G
May 11, 2018Dbr Industries, Inc. 1K697689$1.28DlaSPE5EY18F020C
Feb 12, 2018Dbr Industries, Inc. 1K697162$1.28DlaSPE5EY18F5975
Apr 11, 2017Dbr Industries, Inc. 1K69779$1.27DlaSPE5EY16D05080078
Mar 7, 2017Dbr Industries, Inc. 1K697137$1.27DlaSPE5EY16D05080069
Jun 29, 2016Dbr Industries, Inc. 1K697507$1.27DlaSPE5EY16D05080035

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 5331PL0937929.

Request 5331PL0937929

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
$2.23
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Temp Rating
FAHRENHEIT -20.0 AND FAHRENHEIT 400.0
Cross-Sectional Height
INCHES MINIMUM 0.135 AND INCHES MAXIMUM 0.143
Center Hole Diameter
INCHES MINIMUM 5.199 AND INCHES MAXIMUM 5.269
Elongation Percentage
MAXIMUM 125
Hardness Rating
SHORE DUROMETER A NOMINAL 75.0
Material
RUBBER FLUOROCARBON CLASS FPM

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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