The Bearing,sleeve, cataloged under National Stock Number 3120-00-139-4621, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 5 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-139-4621 |
| Primary Part Number | CS-2300-0001 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Body Outside Diameter | 2.2510 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM IN |
| Style Designator | SPLIT, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 2.0010 INCHES MINIMUM AND 2.0055 INCHES MAXIMUM IN |
| Antirotation/lubrication Type and Quantity | 1 SLOT |
| Slot Width | 0.2020 INCHES MINIMUM AND 0.2210 INCHES MAXIMUM FIRST IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CS-2300-0001 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| 11663170-2 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 10107604 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3120001394621 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 11663170 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| MIL-STD-130 | 5/9 Secondary reference Jpi Transportation Products Inc |
| CGB4375 | 5/9 Secondary reference Gould Inc Foil Div |
NSN 3120-00-139-4621 is a Bearing,sleeve, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-139-4621 has 2 manufacturer part numbers on file: CS-2300-0001 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 11663170-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5331-00-972-9902. Verify interchangeability with system specifications before substitution.
Key specifications for CS-2300-0001: Body Outside Diameter: 2.2510 INCHES MINIMUM AND 2.2530 INCHES MAXIMUM IN; Style Designator: SPLIT, PLAIN, NO OUTSIDE FLANGES; Overall Length: 1.9370 INCHES NOMINAL IN; Body Inside Diameter: 2.0010 INCHES MINIMUM AND 2.0055 INCHES MAXIMUM IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.