The Handwheel, cataloged under National Stock Number 5340-00-559-6638, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-00-559-6638 |
| Primary Part Number | 5596638 |
| Item Name | Handwheel |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Keyway Depth | 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| FSC Application Data | GUNS,75MM THROUGH 125MM MM |
| Hub Outside Diameter | 1.750 INCHES NOMINAL IN |
| Handle Rotating Feature | INCLUDED |
| Hub Length | 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN |
| Handle Counterbalancing Weight | NOT INCLUDED |
| Spoke Angle in Deg | 120.0 |
| Ratchet | NOT INCLUDED |
| Material Document and Classification | QQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 7.844 INCHES NOMINAL IN |
| Drive Facility Style | SINGLE KEYWAY |
| Handwheel Style | SPOKES |
| Inside Diameter | 0.746 INCHES MINIMUM AND 0.747 INCHES MAXIMUM IN |
| Keyway Width | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Color | WHITE OVERALL |
| Spoke Quantity | 3 |
| Material | IRON CAST UNS F22200 OR IRON CAST UNS F22400 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5340-00-559-6638 is a Handwheel, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-559-6638 has 2 manufacturer part numbers on file: P1345 (Fmc Corp), 5596638 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 5596638: Keyway Depth: 0.095 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Overall Height: 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN; FSC Application Data: GUNS,75MM THROUGH 125MM MM; Hub Outside Diameter: 1.750 INCHES NOMINAL IN. 17 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.