The Clamp,block, cataloged under National Stock Number 1560-01-666-1877, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is General Atomics Div General Atomics Electromagnetic Systems. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Clamp,block |
| FSC / FSG | 1560 — Airframe Structural Components (FSG 15) |
| Manufacturers | General Atomics Div General Atomics Electromagnetic Systems (CAGE 4XB60) |
| Parameter | Value |
|---|---|
| NSN | 1560-01-666-1877 |
| Primary Part Number | 3890AS001774-01 |
| Item Name | Clamp,block |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | General Atomics Div General Atomics Electromagnetic Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3890AS001774-01 PRIMARY | General Atomics Div General Atomics Electromagnetic Systems (USA) |
| Reference | Meaning |
|---|---|
| 3890AS001774-01 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 1560-01-666-1877 is a Clamp,block, manufactured by General Atomics Div General Atomics Electromagnetic Systems, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-666-1877 has 1 manufacturer part number on file: 3890AS001774-01 (General Atomics Div General Atomics Electromagnetic Systems).
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1560-01-666-1877 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.