Home · FSC 3120 Bearings, Plain, Unmounted · NSN 3120-01-165-3445

NSN 3120-01-165-3445 — Bearing,Sleeve

NIIN 01-165-3445 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 12 government buys since 2021

The government has bought this item about every 3 months (loose, gaps vary ±84%). Last buy May 28, 2026. 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 3120-01-165-3445 is the national stock number for a bearing,sleeve in federal supply class 3120 (Bearings, Plain, Unmounted). It cross-references to 4 manufacturer part numbers from 3 CAGE codes, including Naval Sea Systems Command, Rbc Southwest Products, Inc., Rbc Transport Dynamics Corp; the primary is 5210095. The unit of issue is EA and the FLIS list price is $754.89.

The U.S. government has bought this item 14 times on record, 4 of them in the last 24 months, most recently on May 28, 2026 at $317.70 each from Specialty Components & Fasteners, LLC. The median unit price paid over 36 months is $470.70. 1 solicitation is open right now, the soonest due September 30, 2026 for 15 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.

4

part numbers from 3 CAGEs

1

open solicitation, all agencies

4

government buys in 24 months · median $470.70

0

sellers with confirmed stock

Watch NSN 3120-01-165-3445: 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
521009553711Naval Sea Systems Command3 · Design control (vendor)2 · Fully interchangeable
DBSF-18-092-181376Rbc Southwest Products, Inc.5 · Secondary reference9 · Reference only
HJF-182109455Rbc Transport Dynamics Corp5 · Secondary reference9 · Reference only
SJF1821S09455Rbc Transport Dynamics Corp5 · Secondary reference1 · Not fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
May 28, 2026Specialty Components & Fasteners, LLC 7SK9335$317.70DlaSPE4A626PG624
Aug 22, 2025Specialty Components & Fasteners, LLC 7SK9355$327.70DlaSPE4A625V570T
Dec 31, 2024Specialty Components & Fasteners, LLC 7SK938$527.70DlaSPE4A625V6368
Oct 9, 2024Specialty Components & Fasteners, LLC 7SK9313$470.70DlaSPE4A625V0656
Nov 8, 2023Rbc Southwest Products, Inc. 813765$570.50DlaSPE4A624V2250
Sep 22, 2023Mechatronics, Inc 5V1229$549.44DlaSPE4A623PYV91
Sep 16, 2023Rbc Southwest Products, Inc. 8137617$525.00DlaSPE4A623PYN41
Apr 14, 2023Rbc Southwest Products, Inc. 8137614$525.00DlaSPE4A623PK281
Mar 4, 2023Mechatronics, Inc 5V1225$524.93DlaSPE4A623PF313
Nov 15, 2021Mechatronics, Inc 5V12210$486.00DlaSPE4A622P4355
Oct 5, 2021Mechatronics, Inc 5V12221$318.47DlaSPE4A622P0984
Aug 13, 2021Mechatronics, Inc 5V122110$255.82DlaSPE4A621PS363
Jun 2, 2021Mechatronics, Inc 5V12218$267.89DlaSPE4A621PL582
Aug 17, 2015Mechatronics, Inc 5V122156$227.98DlaSPE4A615ME210

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 14 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 5210095.

Request 5210095

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
$754.89
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Overall Length
INCHES NOMINAL 0.6800
Body Outside Diameter
INCHES MINIMUM 1.3755 AND INCHES MAXIMUM 1.3775
Body Inside Diameter
INCHES MINIMUM 1.1275 AND INCHES MAXIMUM 1.1305
Flange Outside Diameter
INCHES MINIMUM 1.8650 AND INCHES MAXIMUM 1.8850
Flange Width
INCHES NOMINAL 0.0900
Corner Shape
LEFT FLANGE OUTSIDE RIGHT CORNER SQUARE
Corner Shape
INSIDE RIGHT CORNER CHAMFERED
Corner Shape
OUTSIDE LEFT CORNER SQUARE
Corner Shape
LEFT FLANGE BODY CORNER SQUARE
Corner Shape
INSIDE LEFT CORNER SQUARE
Corner Shape
OUTSIDE RIGHT CORNER SQUARE
Material
OUTER LAYER PLASTIC PHENOLIC
Material
INNER LAYER PLASTIC POLYTETRAFLUOROETHYLENE
Proprietary Characteristics
PACS

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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