The Sleeve and Slide,directional Con, cataloged under National Stock Number 4820-00-978-0649, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kemp/real-Time Laboratories. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-978-0649 |
| Primary Part Number | 8712256 |
| Item Name | Sleeve and Slide,directional Con |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kemp/real-Time Laboratories |
| Status | ACTIVE |
| 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 |
|---|---|
| 8712256 | Curtiss-Wright Controls Integrated Sensing, Inc. Dba Predator Systems (USA) |
| 8712256 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 8712256 PRIMARY | Kemp/real-Time Laboratories (USA) |
| Reference | Meaning |
|---|---|
| 4820009780649 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 8712256 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 2520009780649 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 8712256 | 5/9 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| 61931 | 5/9 Secondary reference Cadillac Gage Textron Inc. |
NSN 4820-00-978-0649 is a Sleeve and Slide,directional Con, manufactured by Kemp/real-Time Laboratories, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-978-0649 has 3 manufacturer part numbers on file: 8712256 (Curtiss-Wright Controls Integrated Sensing, Inc. Dba Predator Systems), 8712256 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 8712256 (Kemp/real-Time Laboratories).
2 possible matches (shared part number, not a government interchangeability claim): 7035-01-160-4423, 4820-01-594-4334. Verify interchangeability with system specifications before substitution.
Key specifications for 8712256: Special Features: SLEEVE-11635984 AND SLIDE-11635987 TO BE MATCHED SET; 0.00002 DIA TOLERANCE W/8AA FINISH EACH PART; End Item Identification: M109 HOWITZER FAMILY. 0 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.