NSN 3110-00-458-1891 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-458-1891. Manufacturer of record part number: 27691.
The Cone and Rollers,tapered Roller, cataloged under National Stock Number 3110-00-458-1891, 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 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
3110-00-458-1891
Primary Part Number
27691
Item Name
Cone and Rollers,tapered Roller
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
The Timken Corporation
Status
ACTIVE
Style Designator
NORMAL ANGLE
Cone Corner Radius
0.2500 INCHES NOMINAL IN
Cone Width
1.0000 INCHES NOMINAL IN
Standard Tolerance Designation
AFBMA CLASS 2
Bore Diameter
3.2813 INCHES NOMINAL IN
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-00-836-3569SAE J512 6-8 060202BPOSSIBLE MATCH
ELBOW,PIPE TO TUBE
Possible match (shared part number)Sae International Dba Sae International
1680-01-108-30312769-1POSSIBLE MATCH
SENSOR
Possible match (shared part number)Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
5995-01-304-012027691-2POSSIBLE MATCH
CABLE ASSEMBLY,RADIO FREQUENCY
Possible match (shared part number)Fisica Applied Technologies, Inc. Div Randtron Antenna Systems
5306-01-502-5857400-26990 ITEM 24POSSIBLE MATCH
BOLT,MACHINE
Possible match (shared part number)Moog Inc. Dba Ampac-Isp Corp
6545-01-600-3255AMAL0636NPOSSIBLE MATCH
AID STATION CONSUMABLES
Possible match (shared part number)Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
NSN 3110-00-458-1891 is a Cone and Rollers,tapered Roller, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-458-1891?
NSN 3110-00-458-1891 has 2 manufacturer part numbers on file: 27691 (The Timken Corporation), 27691 (Meritor Industrial Products, Llc).
What NSN replaces 3110-00-458-1891?
5 possible matches (shared part number, not a government interchangeability claim): 4730-00-836-3569, 1680-01-108-3031, 5995-01-304-0120. Verify interchangeability with system specifications before substitution.
What are the specifications of 27691?
Key specifications for 27691: Style Designator: NORMAL ANGLE; Cone Corner Radius: 0.2500 INCHES NOMINAL IN; Cone Width: 1.0000 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-458-1891 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.