The Drain Attachment,gear Box, cataloged under National Stock Number 4920-01-112-4937, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Gigli Enterprises, Inc. Dba Diver's Den. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-01-112-4937 |
| Primary Part Number | H538A-3 |
| Item Name | Drain Attachment,gear Box |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Gigli Enterprises, Inc. Dba Diver's Den |
| Status | ACTIVE |
| General Characteristics Item Description | 26.000 IN. LG,1.000 IN. O/A 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 |
|---|---|
| H538A-3 | Gigli Enterprises, Inc. Dba Diver's Den (USA) |
| H538A-3 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 4920PL1936892 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| H538A-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-112-4937 is a Drain Attachment,gear Box, manufactured by Gigli Enterprises, Inc. Dba Diver's Den, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-112-4937 has 2 manufacturer part numbers on file: H538A-3 (Gigli Enterprises, Inc. Dba Diver's Den), H538A-3 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for H538A-3: General Characteristics Item Description: 26.000 IN. LG,1.000 IN. O/A DIA IN; End Item Identification: HELICOPTER MODEL SH-60B. 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.