NSN 3110-01-021-3540 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-021-3540. Manufacturer of record part number: 4906208-4.
The Bearing, cataloged under National Stock Number 3110-01-021-3540, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Kalmar AC Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Bearing
FSC / FSG
3110 — Bearings, Antifriction, Unmounted (FSG 31)
Manufacturers
Kalmar AC Inc (CAGE 0AHU0)
Technical Specifications
Parameter
Value
NSN
3110-01-021-3540
Primary Part Number
4906208-4
Item Name
Bearing
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
Kalmar AC Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5935-01-153-9315POSSIBLE MATCH
JACK,TIP
Possible match (shared part number)
3020-01-181-202640056-1416POSSIBLE MATCH
GEAR,HELICAL
Possible match (shared part number)Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
6145-01-211-9268AA-3381POSSIBLE MATCH
CABLE,RADIO FREQUENCY
Possible match (shared part number)Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
8465-01-541-797740056POSSIBLE MATCH
HYDRATION SYSTEM
Possible match (shared part number)Camelbak Products, Llc Dba Camelbak
5306-01-576-9533770991100000POSSIBLE MATCH
BOLT,MACHINE
Possible match (shared part number)Axis Products Inc
NSN 3110-01-021-3540 is a Bearing, manufactured by Kalmar AC Inc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-01-021-3540?
NSN 3110-01-021-3540 has 1 manufacturer part number on file: 4906208-4 (Kalmar AC Inc).
What NSN replaces 3110-01-021-3540?
5 possible matches (shared part number, not a government interchangeability claim): 5935-01-153-9315, 3020-01-181-2026, 6145-01-211-9268. Verify interchangeability with system specifications before substitution.
Is NSN 3110-01-021-3540 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.