The Valve Assembly,hydraulic, cataloged under National Stock Number 1650-01-108-2999, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1650-01-108-2999 |
| Primary Part Number | 4CM6861 |
| Item Name | Valve Assembly,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF ONE EA. SPRING,P/N 4CMS3;POPPET,P/N 4CMP3;SPRING RETAINER,P/N 4CMT32;SEAT RING,P/N 4CMG1;HOUSING,P/N 4CMH681;PASSIVATE THE WHOLE ASSEMBLY PER MIL-S-5002;O/A DIM 2.000 IN. LG;ONE END PER MS33656G8,1.642 IN. LG,INCLUDES FLANGE;0.188 IN. DIA,FLANGE;0.348 IN. MIN. AND 0.368 IN. MAX. LG OTHER END W/2 GROOVES,THIS END PER MS33656E6;DASH 8 END MUST HAVE TUBING CONNECTED FOR ALL APPLICATIONS OF PRESSURE INCHECK DIRECTION;2 PSI TO 8 PSI CRACKING PRESSURE;RATED FLOW 15 GPM AT 80 PSID MAX. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4CM6861 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
| Reference | Meaning |
|---|---|
| 4CM6861 | 5/9 Secondary reference Precision Defense Services Inc |
NSN 1650-01-108-2999 is a Valve Assembly,hydraulic, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-108-2999 has 1 manufacturer part number on file: 4CM6861 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
Key specifications for 4CM6861: General Characteristics Item Description: CONSISTS OF ONE EA. SPRING,P/N 4CMS3;POPPET,P/N 4CMP3;SPRING RETAINER,P/N 4CMT32;SEAT RING,P/N 4CMG1;HOUSING,P/N 4CMH681;PASSIVATE THE WHOLE ASSEMBLY PER MIL-S-5002;O/A DIM 2.000 IN. LG;ONE END PER MS33656G8,1.642 IN. LG,INCLUDES FLANGE;0.188 IN. DIA,FLANGE;0.348 IN. MIN. AND 0.368 IN. MAX. LG OTHER END W/2 GROOVES,THIS END PER MS33656E6;DASH 8 END MUST HAVE TUBING CONNECTED FOR ALL APPLICATIONS OF PRESSURE INCHECK DIRECTION;2 PSI TO 8 PSI CRACKING PRESSURE;RATED FLOW 15 GPM AT 80 PSID MAX. IN. 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.
NSN 1650-01-108-2999 has DEMIL Code B. 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.