NSN 3110-00-232-0781 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-232-0781. Manufacturer of record part number: 77940.
The Ring,bearing,inner, cataloged under National Stock Number 3110-00-232-0781, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Oeco, Llc Dba Pacific Scientific Oeco. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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
3110-00-232-0781
Primary Part Number
77940
Item Name
Ring,bearing,inner
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
Oeco, Llc Dba Pacific Scientific Oeco
Status
ACTIVE
Style Designator
SOLID INNER RACE, JOURNAL AND NEEDLE
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 Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4930-01-582-109977940POSSIBLE MATCH
DISPENSING PUMP,HAND DRIVEN
Possible match (shared part number)Ritchie Engineering Co Inc
5985-01-602-2207SFT8132-1POSSIBLE MATCH
ATTENUATOR ASSEMBLY
Possible match (shared part number)Spectrum Control Inc Div Weinschel
NSN 3110-00-232-0781 is a Ring,bearing,inner, manufactured by Oeco, Llc Dba Pacific Scientific Oeco, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-232-0781?
NSN 3110-00-232-0781 has 2 manufacturer part numbers on file: 77940 (Simplex Mfg Co), 77940 (Oeco, Llc Dba Pacific Scientific Oeco).
What NSN replaces 3110-00-232-0781?
2 possible matches (shared part number, not a government interchangeability claim): 4930-01-582-1099, 5985-01-602-2207. Verify interchangeability with system specifications before substitution.
What are the specifications of 77940?
Key specifications for 77940: Style Designator: SOLID INNER RACE, JOURNAL AND NEEDLE; Overall Width: 0.7820 INCHES MINIMUM AND 0.7870 INCHES MAXIMUM IN; Material: STEEL OVERALL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-232-0781 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.