The Clamp,loop, cataloged under National Stock Number 5340-01-128-9558, 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 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-128-9558 |
| Primary Part Number | 12277381 |
| Item Name | Clamp,loop |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Fastening Device Type | WING HEAD SCREW |
| Material Diameter | 0.500 INCHES NOMINAL IN |
| Style Designator | T-BOLT |
| Material Document and Classification | AISITYPE301 ASSN STD SINGLE MATERIAL RESPONSE BAND |
| Material Thickness | 0.269 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Integral Nut Type and Quantity | 1 PLAIN T BOLT |
| Thread Quantity Per Inch | 28 |
| Tongue Hole Type | ROUND, THREADED |
| Material | STEEL COMP 301 BAND |
| Loop Inside Diameter | 3.000 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 |
|---|---|
| 12277381 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 12277381 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12277381 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| QS-1189 | 5/9 Secondary reference Quick Start Products & Solutions, Inc |
NSN 5340-01-128-9558 is a Clamp,loop, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-128-9558 has 3 manufacturer part numbers on file: 12277381 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 12277381 (U S Army Tank Automotive Command Amsta-Im-Mm), 12277381 (Amz Alabama Inc.).
Key specifications for 12277381: Fastening Device Type: WING HEAD SCREW; Material Diameter: 0.500 INCHES NOMINAL IN; Style Designator: T-BOLT; Material Document and Classification: AISITYPE301 ASSN STD SINGLE MATERIAL RESPONSE BAND. 12 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.