The Shield,expansion, cataloged under National Stock Number 5340-00-678-4637, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-00-678-4637 |
| Primary Part Number | AA1924-202 |
| Item Name | Shield,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Thread Provision | THREADED |
| Hole Accommodation Diameter | 0.468 INCHES NOMINAL IN |
| Insert Size | 5/16IN. -18 THD IN |
| Style Designator | SINGLE EXPANSION MACHINE SCREW |
| Features Provided | INSTALLATION SETTING TOOL |
| Insert Type for Which Designed | MACHINE BOLT |
| Nondefinitive Spec/std Data | 3 GROUP AND 1 TYPE AND 15C FIGURE |
| Safe Operating Load Rating | 450.0 POUNDS NOMINAL LBS |
| Unit Quantity | 1 |
| 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 |
|---|---|
| AA1924-202 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| FFS325 | 5/9 Secondary reference U.S. Government activity |
| A-A-1924 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 5340-00-678-4637 is a Shield,expansion, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-678-4637 has 1 manufacturer part number on file: AA1924-202 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for AA1924-202: Thread Provision: THREADED; Hole Accommodation Diameter: 0.468 INCHES NOMINAL IN; Insert Size: 5/16IN. -18 THD IN; Style Designator: SINGLE EXPANSION MACHINE SCREW. 9 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.