The Clamp,block,section, cataloged under National Stock Number 5340-00-104-8887, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-00-104-8887 |
| Primary Part Number | 10231685 |
| Item Name | Clamp,block,section |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Clamping Hole Quantity | 6 |
| Center to Center Distance Between First and Fourth Clamping Holes | 3.8100 INCHES NOMINAL IN |
| Distance From End to First Clamping Hole Center | 0.5850 INCHES NOMINAL IN |
| Block Height | 1.0100 INCHES MINIMUM AND 1.0700 INCHES MAXIMUM IN |
| Style Designator | RECTANGULAR |
| Material Document and Classification | MIL-P-18177 MIL SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.2570 INCHES MINIMUM AND 0.2640 INCHES MAXIMUM IN |
| Center to Center Distance Between First and Third Mounting Holes | 2.5400 INCHES NOMINAL IN |
| Center to Center Distance Between First and Sixth Clamping Holes | 6.3500 INCHES NOMINAL IN |
| Center to Center Distance Between First and Third Clamping Holes | 2.5400 INCHES NOMINAL IN |
| Distance From Center of Mounting Hole to Edge Along the Width | 0.3120 INCHES NOMINAL IN |
| Distance From End to First Mounting Hole Center | 1.2200 INCHES NOMINAL IN |
| Mounting Facility | UNTHREADED HOLE(S) |
| Center to Center Distance Between First and Fifth Clamping Holes | 5.0800 INCHES NOMINAL IN |
| Center to Center Distance Between First and Second Mounting Holes | 1.2700 INCHES NOMINAL IN |
| Center to Center Distance Between First and Second Clamping Holes | 1.2700 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 |
|---|---|
| 10231685 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 10231685 | Lockheed Martin Corp Electronics and Missiles Div (USA) |
| Reference | Meaning |
|---|---|
| 1440001048887 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5340-00-104-8887 is a Clamp,block,section, manufactured by Us Army Aviation and Missile Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-104-8887 has 2 manufacturer part numbers on file: 10231685 (Us Army Aviation and Missile Command), 10231685 (Lockheed Martin Corp Electronics and Missiles Div).
Key specifications for 10231685: Mounting Hole Quantity: 2; Clamping Hole Quantity: 6; Center to Center Distance Between First and Fourth Clamping Holes: 3.8100 INCHES NOMINAL IN; Distance From End to First Clamping Hole Center: 0.5850 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.