The Sprocket-Brake,stab. Trim System, cataloged under National Stock Number 1680-01-038-9883, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-01-038-9883 |
| Item Name | Sprocket-Brake,stab. Trim System |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL MIL-S-25043 OR AMS 5644,25 TOOTH SPROCKET W/ AMERICAN STD. CHAIN NO. 35 PER A.S.A.-B29.1-1957 W/ 3/8 PITCH W/ 0.200 ROLLER DIA. TYPE 1 OR 2,SPLINE PITCH DIA. 0.8125 CSK 120 PLUS OR MINUS ONE DEG. X 0.88 PLUS OR MINUS0.01 DIA.,0.440-0.445 IN. W,8 HOLES EQUALLY SPACED 0.50-0.52 DIA.,3.19 IN. LG,125 AA MICROINCH FIN. ON TOOTH PROFILE,65 AA MICROINCH FIN. ON SPLINE TOOTH SURFACES,ALL OTHER MACHINED SURFACESW/ 250 AA MICROINCH FIN.,SPROCKET PITCH DIA. 2.992 W |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 69-22496-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-038-9883 is a Sprocket-Brake,stab. Trim System, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-038-9883: General Characteristics Item Description: STEEL MIL-S-25043 OR AMS 5644,25 TOOTH SPROCKET W/ AMERICAN STD. CHAIN NO. 35 PER A.S.A.-B29.1-1957 W/ 3/8 PITCH W/ 0.200 ROLLER DIA. TYPE 1 OR 2,SPLINE PITCH DIA. 0.8125 CSK 120 PLUS OR MINUS ONE DEG. X 0.88 PLUS OR MINUS0.01 DIA.,0.440-0.445 IN. W,8 HOLES EQUALLY SPACED 0.50-0.52 DIA.,3.19 IN. LG,125 AA MICROINCH FIN. ON TOOTH PROFILE,65 AA MICROINCH FIN. ON SPLINE TOOTH SURFACES,ALL OTHER MACHINED SURFACESW/ 250 AA MICROINCH FIN.,SPROCKET PITCH DIA. 2.992 W; End Item Identification: NEXT HIGHER PART 65-27762 APPLICABLE TO THE E-3A AIRCRAFT A. 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 1680-01-038-9883 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.