The Clamp,block,half, cataloged under National Stock Number 5340-01-178-2177, 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 1 specification, 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 | 5340-01-178-2177 |
| Primary Part Number | 12325777 |
| Item Name | Clamp,block,half |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 5083,TEMPER H111 QQ-A-200/4 OR ALUMINUM ALLOY 5083,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 5086,TEMPER H111 QQ-A-200/5 OR ALUMINUM ALLOY 5086,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 5456,TEMPER H111 QQ-A-200/7 OR ALUMINUM ALLOY 5456,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 6061,TEMPER T6 QQ-A-200/8 OR ALUMINUM ALLOY 6061,TEMPER T6 QQ-A-225/8 OR ALUMINUM ALLOY 6061,TEMPER T6 ASTM B211 OR ALUMINUM ALLOY 6061,TEMPER T6 ASTM B221; EPOXY-POLYAMIDE CLASS OPTL TYPE 1; 4.500 IN. LG; 1.000 IN. W; 0.530 IN. H; 2 MOUNTING HOLES 0.312 IN. MIN,0.342 IN. MAX DIA; 2 TUBE OPENINGS 0.792 IN. MIN,0.832 IN. MAX DIA; 2 TUBE OPENINGS 0.574 IN. MIN,0.614 IN. MAX DIA; COLOR WHITE 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 |
|---|---|
| 12325777 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5340-01-178-2177 is a Clamp,block,half, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-178-2177 has 1 manufacturer part number on file: 12325777 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12325777: General Characteristics Item Description: ALUMINUM ALLOY 5083,TEMPER H111 QQ-A-200/4 OR ALUMINUM ALLOY 5083,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 5086,TEMPER H111 QQ-A-200/5 OR ALUMINUM ALLOY 5086,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 5456,TEMPER H111 QQ-A-200/7 OR ALUMINUM ALLOY 5456,TEMPER H111 ASTM B221 OR ALUMINUM ALLOY 6061,TEMPER T6 QQ-A-200/8 OR ALUMINUM ALLOY 6061,TEMPER T6 QQ-A-225/8 OR ALUMINUM ALLOY 6061,TEMPER T6 ASTM B211 OR ALUMINUM ALLOY 6061,TEMPER T6 ASTM B221; EPOXY-POLYAMIDE CLASS OPTL TYPE 1; 4.500 IN. LG; 1.000 IN. W; 0.530 IN. H; 2 MOUNTING HOLES 0.312 IN. MIN,0.342 IN. MAX DIA; 2 TUBE OPENINGS 0.792 IN. MIN,0.832 IN. MAX DIA; 2 TUBE OPENINGS 0.574 IN. MIN,0.614 IN. MAX DIA; COLOR WHITE IN. 1 specification is 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.