Home · NSN 01-040-8740

NSN 01-040-8740 — Bearing,Plain,Self-Aligning

NIIN 01-040-8740 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 01-040-8740 is the national stock number for a bearing,plain,self-aligning. It cross-references to 12 manufacturer part numbers from 13 CAGE codes, including U S Bearings, The Boeing Company, Curtiss-Wright Controls Integrated Sensing, Inc.; the primary is 55303M. The unit of issue is EA and the FLIS list price is $137.68.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 30 days; watching the number is free and the first listing triggers an alert.

12

part numbers from 13 CAGEs

0

open solicitations, all agencies

0

government buys in 24 months

0

sellers with confirmed stock

Watch NSN 01-040-8740: 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
BACB10X3TM02758U S Bearings3 · Design control (vendor)2 · Fully interchangeable
BACB10X3TM81205The Boeing Company3 · Design control (vendor)2 · Fully interchangeable
HU4-136M02758U S Bearings3 · Design control (vendor)2 · Fully interchangeable
55303M04320Curtiss-Wright Controls Integrated Sensing, Inc.5 · Secondary reference9 · Reference only
55303M09455Rbc Transport Dynamics Corp5 · Secondary reference2 · Fully interchangeable
ABW4-5-1250294New Hampshire Ball Bearings Inc5 · Secondary reference9 · Reference only
ABW4-5-12J1011Minebea Mitsumi Inc.5 · Secondary reference9 · Reference only
ABW4-5-12S0352Minebea Mitsumi Inc.5 · Secondary reference9 · Reference only
AW4CRG1215860New Hampshire Ball Bearings Inc5 · Secondary reference9 · Reference only
BACB10A201GM281205The Boeing Company5 · Secondary reference9 · Reference only
BACB10X3MT81205The Boeing Company5 · Secondary reference9 · Reference only
BACB10X3TM16746Rbc Specline Inc5 · Secondary reference2 · Fully interchangeable
BACB10X3TM56644Timken Aurora Bearing Company5 · Secondary reference2 · Fully interchangeable
BACB10X3TMJ1011Minebea Mitsumi Inc.5 · Secondary reference2 · Fully interchangeable
BACB10X3TMS0352Minebea Mitsumi Inc.5 · Secondary reference9 · Reference only
BACB10X3TM09455Rbc Transport Dynamics Corp5 · Secondary reference9 · Reference only
BACB10X3TM15860New Hampshire Ball Bearings Inc5 · Secondary reference2 · Fully interchangeable
BSSR-48C6EC281376Rbc Southwest Products, Inc.5 · Secondary reference9 · Reference only
BSSR4625-G81376Rbc Southwest Products, Inc.5 · Secondary reference9 · Reference only
KWB-4CRGD597613Sargent Aerospace & Defense, LLC5 · Secondary reference9 · Reference only
KWB-4SSG0697613Sargent Aerospace & Defense, LLC5 · Secondary reference9 · Reference only
WS-4E-273134Roller Bearing Company Of America, Inc.5 · Secondary reference2 · Fully interchangeable

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

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

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 55303M.

Request 55303M

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
$137.68
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2026

Item characteristics

Bore Diameter
INCHES MINIMUM 0.2495 AND INCHES MAXIMUM 0.2500
Outer Member Outside Diameter
INCHES MINIMUM 0.6245 AND INCHES MAXIMUM 0.6250
Outer Member Width
INCHES MINIMUM 0.3220 AND INCHES MAXIMUM 0.3320
Inner Member Width
INCHES MINIMUM 0.4320 AND INCHES MAXIMUM 0.4370
Static Radial Load Rating
POUNDS 17500
Hardness Rating
OUTER RACE MEMBER ROCKWELL C MINIMUM 28.0 AND ROCKWELL C MAXIMUM 36.0
Hardness Rating
INNER MEMBER ROCKWELL C MINIMUM 50.0 AND ROCKWELL C MAXIMUM 60.0
Material
OUTER RACE MEMBER STEEL COMP 630
Material
LUBRICATION LUBRICANT DRY FILM
Material
INNER MEMBER STEEL COMP 440C
Material Document And Classification
LUBRICATION MFR REF SINGLE MATERIAL RESPONSE B-S 3-8, -CDONNELL DOUGLAS COR, -CDONNELL AIRCRAFT DIVISION

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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