The Sleeve and Slide,directional Con, cataloged under National Stock Number 4810-01-505-9878, 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 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-505-9878 |
| Primary Part Number | MC21787 |
| Item Name | Sleeve and Slide,directional Con |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Valve Model Number for Which Designed | MC21878 |
| Criticality Code Justification | AGAV |
| Valve Design Control Activity | 76050 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| MC21787 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
| Reference | Meaning |
|---|---|
| MC21787 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-505-9878 is a Sleeve and Slide,directional Con, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-505-9878 has 1 manufacturer part number on file: MC21787 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
Key specifications for MC21787: Valve Model Number for Which Designed: MC21878; Criticality Code Justification: AGAV; Special Features: INAVY) SLEEVE AND SLIDE,; Valve Design Control Activity: 76050. 3 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 4810-01-505-9878 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.