The Plate,armor,seat Si, cataloged under National Stock Number 1680-00-975-0194, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-975-0194 |
| Item Name | Plate,armor,seat Si |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-250/4 COMP 2024 COND T351,TILE,CERAMIC,HIGH STRENGTH,COMMERCIAL GRADE,CLOTH,NYLON,BALLISTIC MIL-C-12369,DIM.,18.110 IN. NOM BOTTOM LG,13.500 IN. NOM TOP LG,10.780 IN. NOM RIGHT SIDE W,9.250 IN. NOM LEFT SIDE W,0.735 IN. NOM O/A THICK,0.485 IN. NOM TILE THICKNESS,LEFT SIDE TAPERED AT 30.0 DEG ANGLE FOR 4.610 IN. AT POINT 1.300 IN. FROM BOTTOM,TOP LEFT CORNER CHAMFERED 1.000IN. DEEP AND WIDE,13 THREADED HOLES,0.250-20 UNC 3B THREAD SIZE,TOP LEFT AND RIGHT SIDE TAPERED AT 97.0 DEG ANGLE,TOP TAPERED AT 7.0 DEG ANGLE,ALUMINUM AND TILE BONDED W/PROSEAL 890B 1/2,COMPOSITE ARMOR WEIGHT 10.5 PSF MAX,NEOPRENE CHANNEL 0.500 IN. DEEP,0.700 IN. INSIDE WIDTH ATTACHED TO TOPAND LEFT SIDE,USED ON INBOARD SEAT ON UH-1B,D IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 178050-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-00-975-0194 is a Plate,armor,seat Si, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-00-975-0194: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-250/4 COMP 2024 COND T351,TILE,CERAMIC,HIGH STRENGTH,COMMERCIAL GRADE,CLOTH,NYLON,BALLISTIC MIL-C-12369,DIM.,18.110 IN. NOM BOTTOM LG,13.500 IN. NOM TOP LG,10.780 IN. NOM RIGHT SIDE W,9.250 IN. NOM LEFT SIDE W,0.735 IN. NOM O/A THICK,0.485 IN. NOM TILE THICKNESS,LEFT SIDE TAPERED AT 30.0 DEG ANGLE FOR 4.610 IN. AT POINT 1.300 IN. FROM BOTTOM,TOP LEFT CORNER CHAMFERED 1.000IN. DEEP AND WIDE,13 THREADED HOLES,0.250-20 UNC 3B THREAD SIZE,TOP LEFT AND RIGHT SIDE TAPERED AT 97.0 DEG ANGLE,TOP TAPERED AT 7.0 DEG ANGLE,ALUMINUM AND TILE BONDED W/PROSEAL 890B 1/2,COMPOSITE ARMOR WEIGHT 10.5 PSF MAX,NEOPRENE CHANNEL 0.500 IN. DEEP,0.700 IN. INSIDE WIDTH ATTACHED TO TOPAND LEFT SIDE,USED ON INBOARD SEAT ON UH-1B,D 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 1680-00-975-0194 has DEMIL Code D. 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.