PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R9-2-1Ball Retainer Sleeve

Todd Combustion Inc · NSN 3120-00-536-7358 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-536-7358 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-536-7358. Primary manufacturer part number: R9-2-1.
Features
  • Ball Retainer Sleeve — FSC 3120
  • General Characteristics Item Description: STEEL,2.250 IN.LG,HEX FLANGE 1.500 IN.,0.812 IN. ID,GROOVE ON OD,1.312-12 UNF-2A THD 0.500 IN. LG OD A
  • 2 verified cross-references
  • Primary manufacturer: Todd Combustion Inc
Applications
  • Industrial machinery bearing replacement
  • Motor and pump shaft assemblies
  • HVAC blower and fan assemblies
General Description

The Ball Retainer Sleeve, cataloged under National Stock Number 3120-00-536-7358, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Todd Combustion Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-536-7358
Primary Part NumberR9-2-1
Item NameBall Retainer Sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTodd Combustion Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL,2.250 IN.LG,HEX FLANGE 1.500 IN.,0.812 IN. ID,GROOVE ON OD,1.312-12 UNF-2A THD 0.500 IN. LG OD A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3020-00-090-629185-896 INTERCHANGEABLE
Gear,spur
Bogen Communications Inc
5935-00-138-5173151700-0242 INTERCHANGEABLE
Connector,plug,electrical
Itt Cannon Llc
5133-00-189-9295 INTERCHANGEABLE
Drill,twist
5950-00-645-6051 INTERCHANGEABLE
Reactor
5136-00-729-5709 INTERCHANGEABLE
Tap,thread Cutting
5340-00-924-0532N13350 INTERCHANGEABLE
Seat,helical Compression Spring
Leslie Controls, Inc. Dba Leslie Controls Inc
5950-01-176-206213350 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
5331-01-196-7978 INTERCHANGEABLE
O-Ring
1005-01-641-854413350 INTERCHANGEABLE
Bipod,rifle
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
13350 Todd Combustion Inc (USA)
R9-2-1 PRIMARY Todd Combustion Inc (USA)
Related Parts
3020-00-090-6291INTERCHANGEABLE
GEAR,SPUR
85-896
5935-00-138-5173INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
151700-0242
5133-00-189-9295INTERCHANGEABLE
DRILL,TWIST
5950-00-645-6051INTERCHANGEABLE
REACTOR
5136-00-729-5709INTERCHANGEABLE
TAP,THREAD CUTTING
5340-00-924-0532INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
N13350
5950-01-176-2062INTERCHANGEABLE
TRANSFORMER,POWER
13350
5331-01-196-7978INTERCHANGEABLE
O-RING
1005-01-641-8544INTERCHANGEABLE
BIPOD,RIFLE
13350

Frequently Asked Questions

What is NSN 3120-00-536-7358?

NSN 3120-00-536-7358 is a Ball Retainer Sleeve, manufactured by Todd Combustion Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-536-7358?

NSN 3120-00-536-7358 has 2 cross-referenced part numbers: 13350 (Todd Combustion Inc), R9-2-1 (Todd Combustion Inc).

What NSN replaces 3120-00-536-7358?

There are 9 known substitutes for 3120-00-536-7358: 3020-00-090-6291, 5935-00-138-5173, 5133-00-189-9295 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R9-2-1?

Key specifications for R9-2-1: General Characteristics Item Description: STEEL,2.250 IN.LG,HEX FLANGE 1.500 IN.,0.812 IN. ID,GROOVE ON OD,1.312-12 UNF-2A THD 0.500 IN. LG OD A. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com