NSN 3120-01-237-9421 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-237-9421. Manufacturer of record part number: BL-10237.
Body Outside Diameter: 3.2530 INCHES MINIMUM AND 3.2540 INCHES MAXIMUM IN
Body Inside Diameter: 2.9320 INCHES MINIMUM AND 2.9420 INCHES MAXIMUM IN
Flange Width: 0.0920 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN
Material: COPPER ALLOY 841 OVERALL
Material: OIL LUBRICATING LUBRICATION
1 manufacturer part number on file
Identification
NSN: 3120-01-237-9421
NIIN: 012379421
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings
Primary part number: BL-10237
Manufacturer: Breeze-Eastern Llc
General Description
The Bearing,sleeve, cataloged under National Stock Number 3120-01-237-9421, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3120-01-237-9421
Primary Part Number
BL-10237
Item Name
Bearing,sleeve
FSC / FSG
3120 / 31 — Bearings, Plain, Unmounted
Manufacturer
Breeze-Eastern Llc
Status
ACTIVE
Flange Outside Diameter
3.4370 INCHES NOMINAL IN
Body Outside Diameter
3.2530 INCHES MINIMUM AND 3.2540 INCHES MAXIMUM IN
Body Inside Diameter
2.9320 INCHES MINIMUM AND 2.9420 INCHES MAXIMUM IN
Flange Width
0.0920 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN
Other items in FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288
3120-00-001-1288 · Item name not on file
3120-00-001-1835
3120-00-001-1835 · Item name not on file
3120-00-001-1838
3120-00-001-1838 · Item name not on file
3120-00-001-1928
3120-00-001-1928 · Item name not on file
3120-00-001-1934
3120-00-001-1934 · Item name not on file
3120-00-001-3933
3120-00-001-3933 · Item name not on file
3120-00-001-3937
3120-00-001-3937 · Item name not on file
3120-00-001-3938
3120-00-001-3938 · Item name not on file
Frequently Asked Questions
What is NSN 3120-01-237-9421?
NSN 3120-01-237-9421 is a Bearing,sleeve, manufactured by Breeze-Eastern Llc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
What part numbers are listed for NSN 3120-01-237-9421?
NSN 3120-01-237-9421 has 1 manufacturer part number on file: BL-10237 (Breeze-Eastern Llc).
What are the specifications of BL-10237?
Key specifications for BL-10237: Flange Outside Diameter: 3.4370 INCHES NOMINAL IN; Body Outside Diameter: 3.2530 INCHES MINIMUM AND 3.2540 INCHES MAXIMUM IN; Overall Length: 0.4060 INCHES NOMINAL IN; Body Inside Diameter: 2.9320 INCHES MINIMUM AND 2.9420 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 3120-01-237-9421 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.