The Pin Assembly,eccentric Alignment, cataloged under National Stock Number 1680-01-474-2500, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-474-2500 |
| Item Name | Pin Assembly,eccentric Alignment |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| Overall Diameter | 0.690 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 0.250-28 UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AAP100CH40-6 | 3/2 Design control — primary reference U.S. Government activity |
| K870357-001 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 1680-01-474-2500 is a Pin Assembly,eccentric Alignment, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-474-2500: Overall Diameter: 0.690 INCHES NOMINAL IN; Overall Length: 1.560 INCHES NOMINAL IN; Special Features: PIN DIA. 0.240-0.250 IN.,TAPERS TO RADIUSED END; SECOND END IS THREADED WITH HEX SOCKET IN END 0.125 IN. ACROSS FLATS; THREAD CLASS 3A; ASSEMBLY CONSISTS OF PIN WITH 0.690 IN. DIA. SHOULDER LOCATED 0.739 IN. FROM TAPERED END, ONE CONCENTRIC BUSHING, ONE ECCENTRIC HEX BUSHING 0.620 IN. ACROSS FLATS, AND ONE LOCKING NUT WITH NYLON INSERT 0.430 IN. ACROSS FLATS; HARDENED TO H1025 COND HRC 35 - 42 A; Surface Treatment: PASSIVATE. 4 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.
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.