The Lock Set,mortise, cataloged under National Stock Number 5340-00-355-4871, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-355-4871 |
| Item Name | Lock Set,mortise |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Locking Mechanism Type | PIN TUMBLER |
| Length | 8.000 INCHES NOMINAL IN |
| Face Shape | FLAT |
| Design Type | DEAD BOLT OR LATCH BOLT |
| Key Change Quantity | 600 |
| Features Provided | STRIKE AND THUMB PIECE AND SCREW |
| Knob Shape | ELLIPTICAL OR TEE OR ROUND |
| Bolt Type | REGULAR BEVEL OR UNIVERSAL |
| Height | 5.500 INCHES NOMINAL IN |
| Width | 1.063 INCHES NOMINAL IN |
| Knob Quantity | 2 |
| Material | COPPER ALLOY CASE |
| Material | COPPER ALLOY KNOB |
| Backset Depth | 2.750 INCHES NOMINAL IN |
| Operation Method | HANDLE ON INSIDE AND OUTSIDE KEY AND OUTSIDE TURN KNOB LATCH BOLT |
| Operation Method | OUTSIDE KEY AND INSIDE THUMBPIECE DEAD BOLT |
| Thickness | 1.500 INCHES NOMINAL OVERALL IN |
| Thickness | 0.750 INCHES NOMINAL CASE IN |
| Thickness | 3.875 INCHES NOMINAL BACKSET 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 |
| Reference | Meaning |
|---|---|
| S1603-860334TYPEB | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-00-355-4871 is a Lock Set,mortise, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-355-4871: Locking Mechanism Type: PIN TUMBLER; Length: 8.000 INCHES NOMINAL IN; Face Shape: FLAT; Design Type: DEAD BOLT OR LATCH BOLT. 19 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.