The Bearing,gun Support, cataloged under National Stock Number 3110-01-182-4030, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bearing,gun Support |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc (CAGE 6X224); Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (CAGE 2V343); Alpha Aviation Components, Inc. (CAGE 0K0E0) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-182-4030 |
| Primary Part Number | 387-3513 |
| Item Name | Bearing,gun Support |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 387-3513 PRIMARY | Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc (USA) |
| 387-3513 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 387-3513 PRIMARY | Alpha Aviation Components, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 387-3513 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| 387-3513 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 387-3513 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
| 387-3513 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 3110-01-182-4030 is a Bearing,gun Support, manufactured by Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-182-4030 has 3 manufacturer part numbers on file: 387-3513 (Metri-Tech Engineering, Inc. Dba Metri Tech Engineering Inc), 387-3513 (Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co), 387-3513 (Alpha Aviation Components, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-600-3870. Verify interchangeability with system specifications before substitution.
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 3110-01-182-4030 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.