The Catch,clamping, cataloged under National Stock Number 5340-01-497-8555, 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 19 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-497-8555 |
| Primary Part Number | 12311599 |
| Item Name | Catch,clamping |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Mounting Facility Diameter | 0.135 INCHES NOMINAL IN |
| Surface Hole Quantity | 2 |
| Mounting Facility Quantity | 4 |
| Surface Treatment Document and Classification | SAE-AMS-QQ-P-35 NATIONAL SPEC ALL TREATMENT RESPONSES OVERALL |
| Design Type | CLAW ENGAGING |
| Engaging Surface Width | 0.530 INCHES NOMINAL IN |
| Mounting Method | SCREW |
| Material Thickness | 0.040 INCHES NOMINAL IN |
| Style Designator | LEVER |
| Material Document and Classification | SAE-AMS5513 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL |
| Catch Strike Style | MORTISE |
| Features Provided | SCREW |
| Height | 0.220 INCHES NOMINAL IN |
| Surface Hole Diameter | 0.135 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 2 |
| Operation Method | LEVER HANDLE |
| Hole Diameter | 0.135 INCHES NOMINAL 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 |
|---|---|
| 12311599 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5340-01-497-8555 is a Catch,clamping, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-497-8555 has 1 manufacturer part number on file: 12311599 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12311599: Mounting Facility Diameter: 0.135 INCHES NOMINAL IN; Overall Height: 0.340 INCHES NOMINAL IN; Surface Hole Quantity: 2; Mounting Facility Quantity: 4. 19 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.