The Valve,linear,directional Control, cataloged under National Stock Number 4810-01-133-9938, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-133-9938 |
| Primary Part Number | MC12959-1 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO. |
| 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 |
|---|---|
| MC12959-1 | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
| Reference | Meaning |
|---|---|
| 214-22031-103 | 1/3 Source control — Government-approved source U.S. Government activity |
NSN 4810-01-133-9938 is a Valve,linear,directional Control, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-133-9938 has 1 manufacturer part number on file: MC12959-1 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
Key specifications for MC12959-1: Special Features: ALUMINUM ALLOY 7075-T3;ANODIZE;4 WAY,3 POSITION,PILOT OPERATED,SOLENOIDCONTROLLED;FLUID,HYDRAULIC;O/A DIM 5.975 IN. LG;3.310 IN. HT;0.254 IN. MIN. AND 0.264 IN. MAX. DIA THRU MOUNTING HOLES 3 PLACES;-103 SAME AS -101 EXCEPTFOR INTERNAL SPOOL AND SLEEVE ASSY IN; End Item Identification: A7K ACFT; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.. 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.