The Lock Set,mortise, cataloged under National Stock Number 5340-00-033-8873, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Eastern Co Div Eberhard Manufacturing. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-033-8873 |
| Primary Part Number | 5631 1-2 |
| Item Name | Lock Set,mortise |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Eastern Co Div Eberhard Manufacturing |
| Status | ACTIVE |
| Locking Mechanism Type | TURN HANDLE |
| Design Type | LATCH BOLT |
| Features Provided | RELEASE BAR |
| Bolt Type | REGULAR BEVEL OR UNIVERSAL |
| Height | 1.625 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE CASE |
| Surface Treatment | CADMIUM AND CHROMATE DOOR PULL |
| Width | 2.250 INCHES NOMINAL IN |
| Material | STEEL CASE |
| Material | STEEL BAR |
| Material | STEEL DOOR PULL |
| Operation Method | HANDLE ON OUTSIDE LATCH BOLT |
| Thickness | 0.750 INCHES NOMINAL BAR IN |
| Thickness | 1.500 INCHES NOMINAL BAR OVERALL 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 |
|---|---|
| 5631 1-2 PRIMARY | Eastern Co Div Eberhard Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 5631 1-2 | 5/9 Secondary reference Eastern Co the |
NSN 5340-00-033-8873 is a Lock Set,mortise, manufactured by Eastern Co Div Eberhard Manufacturing, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-033-8873 has 1 manufacturer part number on file: 5631 1-2 (Eastern Co Div Eberhard Manufacturing).
1 possible match (shared part number, not a government interchangeability claim): 5999-00-161-6643. Verify interchangeability with system specifications before substitution.
Key specifications for 5631 1-2: Locking Mechanism Type: TURN HANDLE; Design Type: LATCH BOLT; Features Provided: RELEASE BAR; Bolt Type: REGULAR BEVEL OR UNIVERSAL. 14 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.