Home · FSC 3120 Bearings, Plain, Unmounted · NSN 3120-01-181-8402

NSN 3120-01-181-8402 — Bearing,Plain,Self-Aligning

NIIN 01-181-8402 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 16 government buys since 2016

The government has bought this item about every 6 months (loose, gaps vary ±64%). Last buy Jun 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 3120-01-181-8402 is the national stock number for a bearing,plain,self-aligning in federal supply class 3120 (Bearings, Plain, Unmounted). It cross-references to 1 manufacturer part number from 5 CAGE codes, including The Boeing Company, Rbc Transport Dynamics Corp, Echelon Supply And Service, Inc.; the primary is 7-311123630. The unit of issue is EA and the FLIS list price is $1,018.17.

The U.S. government has bought this item 18 times on record, 5 of them in the last 24 months, most recently on June 17, 2026 at $1,297.03 each from Rbc Transport Dynamics Corp. The median unit price paid over 36 months is $940.41. 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.

1

part number from 5 CAGEs

0

open solicitations, all agencies

5

government buys in 24 months · median $940.41

0

sellers with confirmed stock

Watch NSN 3120-01-181-8402: 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
7-3111236308V613The Boeing Company1 · Design control2 · Fully interchangeable
7-31112363009455Rbc Transport Dynamics Corp3 · Design control (vendor)2 · Fully interchangeable
7-31112363061125Echelon Supply And Service, Inc.5 · Secondary reference2 · Fully interchangeable
7-31112363002731Mcdonnell Douglas Helicopter Co Inc5 · Secondary reference9 · Reference only
7-31112363019151Lynn Electronics LLC5 · Secondary reference2 · Fully interchangeable

Government demand

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

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Jun 17, 2026Rbc Transport Dynamics Corp 0945591$1,297.03DlaSPE4A626PU140
Dec 29, 2025Rbc Transport Dynamics Corp 09455101$1,095.00DlaSPE4A626PA798
Nov 13, 2025Rbc Transport Dynamics Corp 0945579$1,006.02DlaSPE4A626V2995
Jun 4, 2025Rbc Transport Dynamics Corp 0945539$874.80DlaSPE4A625V317H
Dec 11, 2024Rbc Transport Dynamics Corp 0945550$729.87DlaSPE4A625V4940
Apr 9, 2024Rbc Transport Dynamics Corp 09455151$663.52DlaSPE4A724P9762
Jun 16, 2023Rbc Transport Dynamics Corp 0945588$390.63DlaSPE4A623F232P
Feb 17, 2023Rbc Transport Dynamics Corp 0945588$390.63DlaSPE4A623F7653
Jan 14, 2022Rbc Transport Dynamics Corp 0945588$379.26DlaSPE4A622F6672
Aug 13, 2021Rbc Transport Dynamics Corp 0945591$368.21DlaSPE4A621F413V
Mar 19, 2021Rbc Transport Dynamics Corp 0945588$368.21DlaSPE4A621F9872
Sep 17, 2020Rbc Transport Dynamics Corp 09455168$368.21DlaSPE4A620F308S
Dec 3, 2018Rbc Transport Dynamics Corp 0945588$368.21DlaSPE4A619F5383
Dec 3, 2018Rbc Transport Dynamics Corp 09455340$368.21DlaSPE4A519F8166
Mar 19, 2018Rbc Transport Dynamics Corp 09455250$305.00DlaSPE4A618PC314
Dec 28, 2017Rbc Transport Dynamics Corp 09455204$270.04DlaSPE4A618F5820
Dec 6, 2016Rbc Transport Dynamics Corp 09455250$250.14DlaSPE4A614D52250004
Nov 4, 2015Rbc Transport Dynamics Corp 09455250$250.14DlaSPE4A614D52250003

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 18 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 7-311123630.

Request 7-311123630

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
$1,018.17
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

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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