BS221121

Roller Bearing Unit

This page provides complete and verified information for part number BS221121, NSN 3130-00-059-9077

You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.

BS221121
Federal Supply Group
Bearings
Federal Supply Classification
3130 Mounted Bearings
National Stock Number
3130-00-059-9077
Item Name Code
30558
Assigment Date
06/08/1967 (59 years ago)

An assembled unit, composed of a housing incorporating a single or multiple row roller bearing(s), designed to meet various or specific conditions of mounting.

1.7500 inches nominal base thickness, 0.6875 inches nominal mounting hole diameter, 2.4375 inches nominal bore diameter, 5.5000 inches nominal housing height, 7.1250 inches nominal center to center distance between mounting holes along width

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Mounting Hole Diameter
0.6875 inches nominal
Bore Diameter
2.4375 inches nominal
Base Thickness
1.7500 inches nominal
Center To Center Distance Between Mounting Holes Along Width
7.1250 inches nominal
Housing Height
5.5000 inches nominal
Housing Width
9.2500 inches nominal
Lubrication Fitting Type
hydraulic
Base Length
2.6900 inches nominal
Rolling Element Groove Quantity
2
Alignment Type
self-aligning
Internal Fit-Up Designation
standard
Assembly Overall Length
3.5000 inches nominal
Seal Type
labyrinth
Block Type
fixed
Shaft End Type
open
Seal Location
both ends
Collar Location
one end
Load Capability Type
radial and thrust
Height From Bottom Of Base To Bore Centerline
2.7500 inches nominal
Features Provided
ground rolling element groove
Lubrication Fitting Angle From Horizontal Centerline
45.0 degrees nominal
Rotating Element Locking Method
setscrew locking collar
Mounting Hole Type
round, unthreaded
Special Features
special fit of bearing in housing
Material
iron cast housing
Material
steel bearing surface
Material
steel seal
Style Designator
pillow block, solid

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
K - Full descriptive - reference item identification
Demilitarization
A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A093A0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0030558
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
8482997090

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
KZ
National Motor Freight Classification Item Number
114690
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
58770
National Motor Freight Class Rating
W - Rating variable
Water Commodity
742 - Bearings
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
VZ -
National Motor Freight Description
balls/rolls bearing

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for BS221121

What is the FSCG of the NSN 3130-00-059-9077?
The FSCG of the NSN 3130-00-059-9077 is 3130
Does the NSN 3130-00-059-9077 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3130-00-059-9077 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3130-00-059-9077 contain precious materials?
Item does not contain precious metal.
Does NSN 3130-00-059-9077 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3130-00-059-9077 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Thu, Jun 8, 1967

Need Consumables?

Running low on essential supplies? Explore our extensive catalog of high-quality consumables designed to keep your operations on track.

Electrical Wires

Recommended for You

Discover a selection of other high-demand NSN components from our catalog. These featured parts are frequently sourced by procurement teams across defense, aerospace, and industrial sectors.

Price & Availability

Fill out the form to get accurate pricing, lead time, and stock details from our NSN specialists:

FREE

Aviation Suppliers Association Member AS9120-ISO9001 Certification

Popular Parts

Browse our top-performing parts, selected based on customer demand and procurement frequency. All listings include up-to-date specs, availability, and condition:

1601315-15
5306-00-949-9520
Shoulder Bolt
1601315-17
5306-00-998-5193
Shoulder Bolt
1601316-11
3020-00-837-2985
Groove Pulley
1601319-1
2840-00-945-3246
Position Sens Cable
1601319-3
2840-00-945-3245
Nozzle Cable
1601319-5
4010-00-868-0864
Single Leg Wire Rope Assembly
1601319-9
4010-00-868-0863
Single Leg Wire Rope Assembly
160132-1
5950-00-041-6527
Power Transformer
1601320-13
2995-00-946-1732
Compensator Arm
1601321-11
5360-00-945-9303
Compression Helical Spring
1601322-11
2995-00-946-1733
Spring Guide
1601323-11
2995-00-946-1734
Nozzle Spring Rod
1601324-1
2995-00-837-2990
Spring Assy
1601324AT1
4920-00-063-3295
Aircraft Maintenance Fixture
1601324AT2
4920-00-063-3303
Aircraft Maintenance Fixture