The Seat Back Assembly,aircraft, cataloged under National Stock Number 1680-01-080-8427, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-080-8427 |
| Item Name | Seat Back Assembly,aircraft |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| Model Number | 4240/4245 |
| General Characteristics Item Description | COMP QTY 97; C/O 2 EA SCREW P/N AN526-632R7; 2 EA NUT P/N MS27130S7K; 1 EA SHROUD P/N 5179-1; 4 EA BUSHING P/N 4528; 1 EA BACK FRAME ASSY P/N 4408-1; 1 EA RETAINER NET P/N 4892-1; 1 EA RETAINER NET P/N 4892-2; 36 EA RIVET P/N NAS 1392D4A4; 36 EA WASHER P/N AN960D4; 12 EA FILLER P/N 5122 |
| Reference Data and Literature | RAAF DEF INSTR AAP 7296-016-3M,FIG. 1,INDEX 60 |
| Specification/standard Data | 81349-MIL-S-81771 GOVERNMENT SPECIFICATION |
| Departure From Cited Document | MIL-S-81771,PARAGRAPH 3.8.1,SEAT BUCKET |
| Functional Description | 20G ADJUSTABLE PILOT AND COPILOT SEAT ASSY G |
| Type/model Designation | P3C |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-S-81771 | 4/1 Identification reference U.S. Government activity |
| 5164-1 | 5/9 Secondary reference U.S. Government activity |
| 5164-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-080-8427 is a Seat Back Assembly,aircraft, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-080-8427: Model Number: 4240/4245; General Characteristics Item Description: COMP QTY 97; C/O 2 EA SCREW P/N AN526-632R7; 2 EA NUT P/N MS27130S7K; 1 EA SHROUD P/N 5179-1; 4 EA BUSHING P/N 4528; 1 EA BACK FRAME ASSY P/N 4408-1; 1 EA RETAINER NET P/N 4892-1; 1 EA RETAINER NET P/N 4892-2; 36 EA RIVET P/N NAS 1392D4A4; 36 EA WASHER P/N AN960D4; 12 EA FILLER P/N 5122; Reference Data and Literature: RAAF DEF INSTR AAP 7296-016-3M,FIG. 1,INDEX 60; Specification/standard Data: 81349-MIL-S-81771 GOVERNMENT SPECIFICATION. 7 specifications are 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 1680-01-080-8427 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.