PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12121000 ITEM 5 5Pulley and Bearing

Jered Llc · NSN 4921-01-145-5348 · FSC 4921 · No Item Name Available
Verified by PartsTable
NSN 4921-01-145-5348 — this item is cataloged by the U.S. Government under National Stock Number 4921-01-145-5348. Primary manufacturer part number: 12121000 ITEM 5 5.
Features
  • Pulley and Bearing — FSC 4921
  • 5 verified cross-references
  • Primary manufacturer: Jered Llc
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Pulley and Bearing, cataloged under National Stock Number 4921-01-145-5348, is classified within Federal Supply Class 4921 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Jered Llc. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePulley and Bearing
FSC / FSG4921 — No Item Name Available (FSG 49)
ManufacturersUnidynamics/saint Louis Inc Conroe Opns (CAGE 95310); Jered Llc (CAGE 98523); Ingersoll-Rand Company Dba Ingersoll-Rand (CAGE 03990); Gulf Coast Holdings, Inc Dba Unidynamics (CAGE 0DHG4)
Technical Specifications
ParameterValue
NSN4921-01-145-5348
Primary Part Number12121000 ITEM 5 5
Item NamePulley and Bearing
FSC / FSG4921 / 49 — No Item Name Available
ManufacturerJered Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-241-3565 INTERCHANGEABLE
Burnisher,jeweler's
4921-01-145-329412121000 ITEM 2 8 INTERCHANGEABLE
Shaft Output
Jered Llc
3040-01-145-334612121000 ITEM 3 7 INTERCHANGEABLE
Shaft,straight
Jered Llc
4921-01-145-5343 INTERCHANGEABLE
Hoist Assembly Torp
4921-01-145-5344 INTERCHANGEABLE
Cam Follower,hoist
4921-01-145-5345CCFL-2 1/2-SB INTERCHANGEABLE
Cam Follower,hoist
Mcgill Manufacturing Co, Inc
4921-01-145-534612121000 ITEM 2 7 INTERCHANGEABLE
Shaft,jack
Jered Llc
4921-01-145-534712121000 ITEM 4 INTERCHANGEABLE
Pendant Assembly
Jered Llc
5340-01-145-538412121000 ITEM 6 2 INTERCHANGEABLE
Strap,retaining
Jered Llc
3130-01-145-540912121000 ITEM 9 1 INTERCHANGEABLE
Cap,pillow Block
Jered Llc
Cross-Reference Index
Part NumberManufacturer
12121000 ITEM 55 Unidynamics/saint Louis Inc Conroe Opns (USA)
12121000 ITEM 5 5 PRIMARY Jered Llc (USA)
35853 PRIMARY Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
12121000 Unidynamics/saint Louis Inc Conroe Opns (USA)
12121000 ITEM 5 5 Gulf Coast Holdings, Inc Dba Unidynamics (USA)
Related Parts
5120-00-241-3565INTERCHANGEABLE
BURNISHER,JEWELER'S
4921-01-145-3294INTERCHANGEABLE
SHAFT OUTPUT
12121000 ITEM 2 8
3040-01-145-3346INTERCHANGEABLE
SHAFT,STRAIGHT
12121000 ITEM 3 7
4921-01-145-5343INTERCHANGEABLE
HOIST ASSEMBLY TORP
4921-01-145-5344INTERCHANGEABLE
CAM FOLLOWER,HOIST
4921-01-145-5345INTERCHANGEABLE
CAM FOLLOWER,HOIST
CCFL-2 1/2-SB
4921-01-145-5346INTERCHANGEABLE
SHAFT,JACK
12121000 ITEM 2 7
4921-01-145-5347INTERCHANGEABLE
PENDANT ASSEMBLY
12121000 ITEM 4
5340-01-145-5384INTERCHANGEABLE
STRAP,RETAINING
12121000 ITEM 6 2
3130-01-145-5409INTERCHANGEABLE
CAP,PILLOW BLOCK
12121000 ITEM 9 1
3130-01-145-5410INTERCHANGEABLE
CAP,PILLOW BLOCK
12121000 ITEM 9 2
4710-01-145-5411INTERCHANGEABLE
TUBE ASSEMBLY,METAL
12121000 ITEM 6 8

Frequently Asked Questions

What is NSN 4921-01-145-5348?

NSN 4921-01-145-5348 is a Pulley and Bearing, manufactured by Jered Llc, classified under FSC 4921 (No Item Name Available). Status: active.

What are the part numbers for NSN 4921-01-145-5348?

NSN 4921-01-145-5348 has 5 cross-referenced part numbers: 12121000 ITEM 55 (Unidynamics/saint Louis Inc Conroe Opns), 12121000 ITEM 5 5 (Jered Llc), 35853 (Ingersoll-Rand Company Dba Ingersoll-Rand), 12121000 (Unidynamics/saint Louis Inc Conroe Opns), 12121000 ITEM 5 5 (Gulf Coast Holdings, Inc Dba Unidynamics).

What NSN replaces 4921-01-145-5348?

There are 12 known substitutes for 4921-01-145-5348: 5120-00-241-3565, 4921-01-145-3294, 3040-01-145-3346 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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