NSN 3120-01-487-6744 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-487-6744. Manufacturer of record part number: 581-6726890-23.
The Bearing,washer,thrust, cataloged under National Stock Number 3120-01-487-6744, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
3120-01-487-6744
Primary Part Number
581-6726890-23
Item Name
Bearing,washer,thrust
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Material
PLASTIC ACETAL 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.
5365-01-487-6763581-6726890-33POSSIBLE MATCH
SPACER,RING
Possible match (shared part number)Naval Sea Systems Command
5365-01-487-6766581-6726890-64POSSIBLE MATCH
SHIM
Possible match (shared part number)Naval Sea Systems Command
5365-01-487-6924581-6726890-70POSSIBLE MATCH
SPACER,RING
Possible match (shared part number)Naval Sea Systems Command
3040-01-488-5565581-6726890-19POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Naval Sea Systems Command
3940-01-489-1464581-6726890-AY98POSSIBLE MATCH
BLOCK,TACKLE
Possible match (shared part number)Naval Sea Systems Command
NSN 3120-01-487-6744 is a Bearing,washer,thrust, manufactured by Naval Sea Systems Command, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-487-6744?
NSN 3120-01-487-6744 has 2 manufacturer part numbers on file: 581-6726890-23 (Naval Sea Systems Command), 14962146 (Naval Sea Systems Command).
What NSN replaces 3120-01-487-6744?
5 possible matches (shared part number, not a government interchangeability claim): 5365-01-487-6763, 5365-01-487-6766, 5365-01-487-6924. Verify interchangeability with system specifications before substitution.
What are the specifications of 581-6726890-23?
Key specifications for 581-6726890-23: Special Features: NEXT HIGHER ASSEMBLY IS FWD AND AFT COMPLIANT SHEAVE ASSEMBLY; Part Name Assigned by Controlling Agency: BEARING, LOCK BLOCK, DELRIN 100AF; End Item Identification: SEAWOLF CLASS SSN; Material: PLASTIC ACETAL OVERALL. 1 specification is documented in the U.S. Government catalog.
Is NSN 3120-01-487-6744 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.