NSN 3110-00-159-9453 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-159-9453. Manufacturer of record part number: 493B.
Outer Ring Outside Diameter: 5.3750 INCHES NOMINAL IN
Standard Tolerance Designation: AFBMA CLASS 2
Material: STEEL OVERALL
Identification
NSN: 3110-00-159-9453
NIIN: 001599453
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: 493B
Manufacturer: The Timken Corporation
General Description
The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-159-9453, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3110-00-159-9453
Primary Part Number
493B
Item Name
Cup,tapered Roller Bearing
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
The Timken Corporation
Status
ACTIVE
Flange Outside Diameter
5.5930 INCHES NOMINAL IN
Style Designator
NORMAL ANGLE, FLANGED
Backface Corner Radius
0.1250 INCHES NOMINAL IN
Flange Width
0.2188 INCHES NOMINAL IN
Outer Ring Outside Diameter
5.3750 INCHES NOMINAL IN
Standard Tolerance Designation
AFBMA CLASS 2
Material
STEEL OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-00-845-2198101550POSSIBLE MATCH
CONTROL ASSEMBLY,PUSH-PULL
Possible match (shared part number)Allianz Sweeper Company
4920-01-077-1263POSSIBLE MATCH
POWER MONITOR
Possible match (shared part number)
4310-01-220-6904101550POSSIBLE MATCH
CYLINDER HEAD,COMPRESSOR
Possible match (shared part number)Ohio Medical Corporation Dba Ohio Medical Corp Ltd U.k
6660-01-314-7712POSSIBLE MATCH
WIND DIRECTION SET
Possible match (shared part number)
6530-01-506-018910-1550POSSIBLE MATCH
JAR,FORCEPS
Possible match (shared part number)Sklar Corporation Dba Sklar Instruments
5925-01-570-3235493BPOSSIBLE MATCH
LOCKING DEVICE,CIRCUIT BREAKER
Possible match (shared part number)Master Lock Company Llc
C/1Advisory reference — outside the item-of-supply concept
Omatech Service Ltd
706670
5/9Secondary reference
Army Weapons Command Attn Amswe-Ree-S
Related Parts
3040-00-845-2198POSSIBLE MATCH
CONTROL ASSEMBLY,PUSH-PULL
101550
4920-01-077-1263POSSIBLE MATCH
POWER MONITOR
4310-01-220-6904POSSIBLE MATCH
CYLINDER HEAD,COMPRESSOR
101550
6660-01-314-7712POSSIBLE MATCH
WIND DIRECTION SET
6530-01-506-0189POSSIBLE MATCH
JAR,FORCEPS
10-1550
5925-01-570-3235POSSIBLE MATCH
LOCKING DEVICE,CIRCUIT BREAKER
493B
Frequently Asked Questions
What is NSN 3110-00-159-9453?
NSN 3110-00-159-9453 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-159-9453?
NSN 3110-00-159-9453 has 1 manufacturer part number on file: 493B (The Timken Corporation).
What NSN replaces 3110-00-159-9453?
6 possible matches (shared part number, not a government interchangeability claim): 3040-00-845-2198, 4920-01-077-1263, 4310-01-220-6904. Verify interchangeability with system specifications before substitution.
What are the specifications of 493B?
Key specifications for 493B: Flange Outside Diameter: 5.5930 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE, FLANGED; Overall Width: 0.8750 INCHES NOMINAL IN; Backface Corner Radius: 0.1250 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-159-9453 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.