The Bearing, cataloged under National Stock Number 1055-01-323-3638, is classified within Federal Supply Class 1055 (Launchers, Rocket and Pyrotechnic) of the Weapons group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1055-01-323-3638 |
| Primary Part Number | 4130221 |
| Item Name | Bearing |
| FSC / FSG | 1055 / 10 — Launchers, Rocket and Pyrotechnic |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Test Data Document | 18876-13029700-202 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| 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 |
|---|---|
| 4130221 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 4130221 | 5/9 Secondary reference Lockheed Martin Corporation |
| 4130221 | 5/2 Secondary reference U.S. Government activity |
NSN 1055-01-323-3638 is a Bearing, manufactured by Us Army Aviation and Missile Command, classified under FSC 1055, Launchers, Rocket and Pyrotechnic. Status: active.
NSN 1055-01-323-3638 has 1 manufacturer part number on file: 4130221 (Us Army Aviation and Missile Command).
Key specifications for 4130221: Test Data Document: 18876-13029700-202 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING). 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.