The Clamp,block, cataloged under National Stock Number 5340-01-348-8622, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 17 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-348-8622 |
| Primary Part Number | 09A121-2 |
| Item Name | Clamp,block |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Mounting Hole Quantity | 22 |
| Clamping Hole Quantity | 33 |
| Distance From End to First Clamping Hole Center | 1.000 INCHES NOMINAL IN |
| Block Height | 0.690 INCHES NOMINAL0.690 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | MIL-C-85052 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-C-85449 MIL SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.322 INCHES NOMINAL0.322 INCHES NOMINAL IN |
| Clamping Hole Diameter | 0.375 INCHES NOMINAL FIRST HOLE IN |
| Clamping Hole Diameter | 0.875 INCHES NOMINAL SECOND HOLE IN |
| Clamping Hole Diameter | 0.875 INCHES NOMINAL THIRD HOLE IN |
| Center to Center Distance Between First and Third Clamping Holes | 2.500 INCHES NOMINAL IN |
| Distance From Center of Mounting Hole to Edge Along the Width | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Distance From End to First Mounting Hole Center | 0.310 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S)UNTHREADED HOLE(S) |
| Center to Center Distance Between First and Second Mounting Holes | 3.630 INCHES NOMINAL3.630 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE NITRILE |
| Center to Center Distance Between First and Second Clamping Holes | 1.380 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 |
|---|---|
| 09A121-2 PRIMARY | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| TA30300311-02 | 5/9 Secondary reference U.S. Government activity |
| 09A121-2 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 09A121-2 | 5/2 Secondary reference U.S. Government activity |
| 11023-2 | 5/9 Secondary reference U.S. Government activity |
| 09A121-2 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-348-8622 is a Clamp,block, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-348-8622 has 1 manufacturer part number on file: 09A121-2 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
2 possible matches (shared part number, not a government interchangeability claim): 6115-01-385-8419, 2540-01-724-2666. Verify interchangeability with system specifications before substitution.
Key specifications for 09A121-2: Mounting Hole Quantity: 22; Overall Height: 1.380 INCHES NOMINAL1.380 INCHES NOMINAL IN; Clamping Hole Quantity: 33; Distance From End to First Clamping Hole Center: 1.000 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.