The Bearing, cataloged under National Stock Number 3110-01-121-4688, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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)
Technical Specifications
Parameter
Value
NSN
3110-01-121-4688
Item Name
Bearing
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6515-01-344-1122POSSIBLE MATCH
NEEDLE,HYPODERMIC
Possible match (shared part number)
5998-01-420-0662405012POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
Possible match (shared part number)Astronics Test Systems Inc
5331-01-441-45776621002POSSIBLE MATCH
O-RING
Possible match (shared part number)Jlg Industries, Inc.
5975-01-682-0131405012-01POSSIBLE MATCH
CHASSIS,ELECTRICAL-ELECTRONIC EQ
Possible match (shared part number)Government Secure Solutions Cgi Inc.
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
405-012
3/9Design control — primary reference
Pine Meadow Machine Co Inc Dba Pine Meadow Machine
Related Parts
6515-01-344-1122POSSIBLE MATCH
NEEDLE,HYPODERMIC
5998-01-420-0662POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
405012
5331-01-441-4577POSSIBLE MATCH
O-RING
6621002
5975-01-682-0131POSSIBLE MATCH
CHASSIS,ELECTRICAL-ELECTRONIC EQ
405012-01
Frequently Asked Questions
What is NSN 3110-01-121-4688?
NSN 3110-01-121-4688 is a Bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What NSN replaces 3110-01-121-4688?
4 possible matches (shared part number, not a government interchangeability claim): 6515-01-344-1122, 5998-01-420-0662, 5331-01-441-4577. Verify interchangeability with system specifications before substitution.
Is NSN 3110-01-121-4688 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.