The Handle,crank, cataloged under National Stock Number 5340-00-421-4528, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-421-4528 |
| Primary Part Number | 1128HM40106-12 |
| Item Name | Handle,crank |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Handle Rotating Feature | NOT INCLUDED |
| Handle Length | 2.7802 INCHES NOMINAL IN |
| Drive Width | 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN |
| Handle Counterbalancing Weight | NOT INCLUDED |
| Ratchet | NOT INCLUDED |
| Material Document and Classification | QQ-A-225/9, ALLOY 7075 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Facility Style | SQUARE |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| 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 |
|---|---|
| 1128HM40106-12 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128HM40106-12 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-00-421-4528 is a Handle,crank, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-421-4528 has 1 manufacturer part number on file: 1128HM40106-12 (Northrop Grumman Systems Corporation).
Key specifications for 1128HM40106-12: Handle Rotating Feature: NOT INCLUDED; Handle Length: 2.7802 INCHES NOMINAL IN; Drive Width: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN; Handle Counterbalancing Weight: NOT INCLUDED. 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.