The Fitting,yaw Pin, cataloged under National Stock Number 1680-00-003-5394, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-003-5394 |
| Primary Part Number | A51K56536-11 |
| Item Name | Fitting,yaw Pin |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ELECTROLESS NICKEL PLATING ALL OVER PER MIL/C-26074 CLASS 2,IRREGULAR SHAPED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51K56536-11 | J Smith Machine Shop Inc Dba Island Engineering (USA) |
| A51K56536-11 | Essner Manufacturing Lp (USA) |
| A51K56536-11 | Aero Components, Llc (USA) |
| A51K56536-11 | Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA) |
| A51K56536-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51K56536-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51K56536-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51K56536-11 | 5/2 Secondary reference U.S. Government activity |
| A51K56536-11 | 5/9 Secondary reference Comptech |
NSN 1680-00-003-5394 is a Fitting,yaw Pin, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-003-5394 has 5 manufacturer part numbers on file: A51K56536-11 (J Smith Machine Shop Inc Dba Island Engineering), A51K56536-11 (Essner Manufacturing Lp), A51K56536-11 (Aero Components, Llc), A51K56536-11 (Capy Machine Shop Inc. Dba Capy Machine Shop Inc), A51K56536-11 (Northrop Grumman Systems Corporation).
Key specifications for A51K56536-11: General Characteristics Item Description: ELECTROLESS NICKEL PLATING ALL OVER PER MIL/C-26074 CLASS 2,IRREGULAR SHAPED. 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.
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.