The Nut,drain Check, cataloged under National Stock Number 5310-00-370-5547, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-370-5547 |
| Primary Part Number | 2381537 |
| Item Name | Nut,drain Check |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company |
| Status | ACTIVE |
| General Characteristics Item Description | P/O WING FUEL TANK,APPL MODEL RA-3B ACFT |
| 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 |
|---|---|
| 2381537 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 2381537 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| 2381537 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 2381537 | 5/9 Secondary reference The Boeing Company |
| 2381537 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-370-5547 is a Nut,drain Check, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-370-5547 has 3 manufacturer part numbers on file: 2381537 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 2381537 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc), 2381537 (Kitco Llc).
Key specifications for 2381537: General Characteristics Item Description: P/O WING FUEL TANK,APPL MODEL RA-3B ACFT. 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.