The Guide,roller, cataloged under National Stock Number 3120-01-034-1994, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-034-1994 |
| Primary Part Number | A222-1 |
| Item Name | Guide,roller |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-225/3 ALLOY 2011 TEMPER T3,CHROMATE MIL-C-5541,0.3100 IN. O/D,0.6900 IN. LG,0.1400 IN. BORE DIA 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 |
|---|---|
| A222-1 PRIMARY | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (USA) |
| Reference | Meaning |
|---|---|
| A222-1 | 5/9 Secondary reference Aiken Advanced Systems Inc a Div of Amstar Technical Products Inc an Affil of Amstar Corp |
NSN 3120-01-034-1994 is a Guide,roller, manufactured by Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-034-1994 has 1 manufacturer part number on file: A222-1 (Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6150-01-408-3985, 4330-01-610-7636. Verify interchangeability with system specifications before substitution.
Key specifications for A222-1: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-225/3 ALLOY 2011 TEMPER T3,CHROMATE MIL-C-5541,0.3100 IN. O/D,0.6900 IN. LG,0.1400 IN. BORE DIA IN; End Item Identification: JETDS AN/GLR-9. 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.