The Block Assy,mtg, cataloged under National Stock Number 1680-01-087-2853, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Leonardo S.p.a. Div Electronics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-087-2853 |
| Primary Part Number | 322383-1 |
| Item Name | Block Assy,mtg |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Leonardo S.p.a. Div Electronics |
| Status | ACTIVE |
| General Characteristics Item Description | 0.375 IN. THK EPOXY RESIN SHEET,TYPE GEE MIL-P-18177; INSERTS /2/ 0.138-32-UNC-2B HELICAL COIL THD BY 0.240 IN. DEEP 0.150 IN. DIA BY 0.380 IN. DEEP 120 DEG CSK BY 0.190 IN. DIA 4 HOLES; 2.950 IN. LG; 0.900 IN. HIGH 1ST END 0.400 IN. HIGH 2ND END; 0.800 IN. WIDE FLANGE; 0.070 IN. RADIUS MAX; 0.500 IN. CENTER TO CENTER DISTANCE BETWEEN HOLES ALONG WIDTH IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 322383-1 | Leonardo S.p.a. Div Electronics (ITA) |
| Reference | Meaning |
|---|---|
| 322383-1 | 3/2 Design control — primary reference U.S. Government activity |
| 322383-1 | 5/9 Secondary reference Fiar Fabbrica Italiana Apparecchiature Radioelettriche Spa |
NSN 1680-01-087-2853 is a Block Assy,mtg, manufactured by Leonardo S.p.a. Div Electronics, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-087-2853 has 1 manufacturer part number on file: 322383-1 (Leonardo S.p.a. Div Electronics).
Key specifications for 322383-1: General Characteristics Item Description: 0.375 IN. THK EPOXY RESIN SHEET,TYPE GEE MIL-P-18177; INSERTS /2/ 0.138-32-UNC-2B HELICAL COIL THD BY 0.240 IN. DEEP 0.150 IN. DIA BY 0.380 IN. DEEP 120 DEG CSK BY 0.190 IN. DIA 4 HOLES; 2.950 IN. LG; 0.900 IN. HIGH 1ST END 0.400 IN. HIGH 2ND END; 0.800 IN. WIDE FLANGE; 0.070 IN. RADIUS MAX; 0.500 IN. CENTER TO CENTER DISTANCE BETWEEN HOLES ALONG WIDTH IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-01-087-2853 has DEMIL Code B. 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.