The Bearing,plain,spherical, cataloged under National Stock Number 3120-01-129-3446, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-129-3446 |
| Primary Part Number | SB5074-101 |
| Item Name | Bearing,plain,spherical |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | New Hampshire Ball Bearings Inc Div Astro Division |
| Status | ACTIVE |
| Body Inside Diameter | 1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| SB5074-101 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| SB5074-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| SB5074-101 | 3/2 Design control — primary reference U.S. Government activity |
| KMDB18-2 | 5/1 Secondary reference U.S. Government activity |
NSN 3120-01-129-3446 is a Bearing,plain,spherical, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-129-3446 has 2 manufacturer part numbers on file: SB5074-101 (New Hampshire Ball Bearings Inc Div Astro Division), SB5074-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SB5074-101: Overall Length: 1.4580 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Body Inside Diameter: 1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN. 1 specification is 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.