The Latch Set,rim, cataloged under National Stock Number 5340-01-249-4430, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-249-4430 |
| Primary Part Number | 1663A21 |
| Item Name | Latch Set,rim |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Action Type | GRAVITY |
| 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 |
|---|---|
| 1663A21 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 1663A1 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 5340-01-249-4430 is a Latch Set,rim, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-249-4430 has 1 manufacturer part number on file: 1663A21 (Mcmaster-Carr Supply Co).
Key specifications for 1663A21: Action Type: GRAVITY; Special Features: CASE MATL-STEEL;CASE SHAPE-RECTANGULAR;KNOB QTY 1;KNOB MATL-STEEL;KNOB SHAPE-ELLIPTICAL;KNOB DESIGN-PLAIN;ACTIVE CASE HGT 2.125 IN.;ACTIVE CASE WDTH 1.500 IN.;ESCUTCHEON,FURNISHED IN. 1 specification is 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.