The Ball,bearing, cataloged under National Stock Number 3110-01-573-9899, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Micro Surface Engr, Inc Dba Micro Surface Engineers Inc Div Bal-Tec. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-573-9899 |
| Primary Part Number | 21409 |
| Item Name | Ball,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Micro Surface Engr, Inc Dba Micro Surface Engineers Inc Div Bal-Tec |
| Status | ACTIVE |
| Rolling Element Diameter | 0.2478 INCHES MINIMUM AND 0.2482 INCHES MAXIMUM IN |
| Style Designator | BALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21409 PRIMARY | Micro Surface Engr, Inc Dba Micro Surface Engineers Inc Div Bal-Tec (USA) |
| 0908100-05 | Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA) |
NSN 3110-01-573-9899 is a Ball,bearing, manufactured by Micro Surface Engr, Inc Dba Micro Surface Engineers Inc Div Bal-Tec, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-573-9899 has 2 manufacturer part numbers on file: 21409 (Micro Surface Engr, Inc Dba Micro Surface Engineers Inc Div Bal-Tec), 0908100-05 (Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County).
Key specifications for 21409: Rolling Element Diameter: 0.2478 INCHES MINIMUM AND 0.2482 INCHES MAXIMUM IN; Style Designator: BALL; End Item Identification: ROTARY BUCKLE ASSEMBLY; Material: STEEL OVERALL. 3 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.
NSN 3110-01-573-9899 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.