The Lock Set,mortise, cataloged under National Stock Number 5340-01-219-3838, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Stefanowicz & Lutz Inc Dba Merit Metal Products Corp. Government technical data includes 16 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-219-3838 |
| Primary Part Number | 20334B |
| Item Name | Lock Set,mortise |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Stefanowicz & Lutz Inc Dba Merit Metal Products Corp |
| Status | ACTIVE |
| Locking Mechanism Type | PIN TUMBLER |
| Length | 8.000 INCHES NOMINAL IN |
| Face Shape | FLAT |
| Design Type | LATCH BOLT |
| Shape | RECTANGULAR CASE |
| Features Provided | STRIKE AND KEY |
| Knob Shape | ELLIPTICAL |
| Bolt Type | SINGLE BEVEL NONREVERSIBLE |
| Height | 5.500 INCHES NOMINAL IN |
| Width | 1.062 INCHES NOMINAL IN |
| Knob Quantity | 2 |
| Material | COPPER ALLOY CASE |
| Material | COPPER ALLOY KNOB |
| Operation Method | HANDLE ON INSIDE AND KNOB ON OUTSIDE LATCH BOLT |
| Thickness | 1.375 INCHES NOMINAL OVERALL IN |
| Thickness | 3.875 INCHES NOMINAL CASE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 20334B PRIMARY | Stefanowicz & Lutz Inc Dba Merit Metal Products Corp (USA) |
| 20334B | Sony Corporation (JPN) |
| Reference | Meaning |
|---|---|
| 20334B | 5/9 Secondary reference Sony Corporation |
| 20334-DROPRING | 5/9 Secondary reference Stefanowicz & Lutz Inc Dba Merit Metal Products Corp |
NSN 5340-01-219-3838 is a Lock Set,mortise, manufactured by Stefanowicz & Lutz Inc Dba Merit Metal Products Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-219-3838 has 2 manufacturer part numbers on file: 20334B (Stefanowicz & Lutz Inc Dba Merit Metal Products Corp), 20334B (Sony Corporation).
Key specifications for 20334B: Locking Mechanism Type: PIN TUMBLER; Length: 8.000 INCHES NOMINAL IN; Face Shape: FLAT; Design Type: LATCH BOLT. 16 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.