The Clamp,block,section, cataloged under National Stock Number 5340-01-358-9301, 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 15 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-358-9301 |
| Primary Part Number | 12338867 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Mounting Hole Quantity | 22 |
| Clamping Hole Quantity | 11 |
| Distance From End to First Clamping Hole Center | 0.690 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TT-C-490,TY I FED SPEC 1ST TREATMENT RESPONSE OR TT-C-490,TY 2 FED SPEC 2ND TREATMENT RESPONSE |
| Block Height | 0.410 INCHES NOMINAL0.410 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | ASTM A108 ASSN STD ALL MATERIAL RESPONSES |
| Mounting Hole Diameter | 0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN |
| Clamping Hole Diameter | 0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM SINGLE HOLE IN |
| Distance From Center of Mounting Hole to Edge Along the Width | 0.280 INCHES NOMINAL0.280 INCHES NOMINAL IN |
| Distance From End to First Mounting Hole Center | 0.284 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S)UNTHREADED HOLE(S) |
| Center to Center Distance Between First and Second Mounting Holes | 0.813 INCHES NOMINAL0.813 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE ZINC OR PHOSPHATE IRON |
| Material | STEEL COMP 1010 AND STEEL COMP 1011 AND STEEL COMP 1012 AND STEEL COMP 1015 AND STEEL COMP 1017 AND STEEL COMP 1018 AND STEEL COMP 1020 |
| 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 |
NSN 5340-01-358-9301 is a Clamp,block,section, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-358-9301 has 2 manufacturer part numbers on file: 5590705 (Am General Llc), 12338867 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12338867: Mounting Hole Quantity: 22; Clamping Hole Quantity: 11; Distance From End to First Clamping Hole Center: 0.690 INCHES NOMINAL IN; Surface Treatment Document and Classification: TT-C-490,TY I FED SPEC 1ST TREATMENT RESPONSE OR TT-C-490,TY 2 FED SPEC 2ND TREATMENT RESPONSE. 15 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.