The Plate,unloader Valve,compressor, cataloged under National Stock Number 4310-00-216-7776, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 48 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-216-7776 |
| Primary Part Number | 6CS6B |
| Item Name | Plate,unloader Valve,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS; 4.350 IN. OD; 0.625 IN. O/A H; ONE SIDE IS RECESSED 4.088 IN. DIA,0.255 IN. DP; W/2 THD HOLES 0.250-20 UNC ON 3.375 IN. DIA BOLT CIRCLE,180 DEG APART,AND VARIOUS OTHER HOLES AND SLOTS IN |
| 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 |
|---|---|
| 6CS6B PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| N400PC136 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 187786PC104 | 5/9 Secondary reference U.S. Government activity |
| N251PC136 | 5/9 Secondary reference Ingersoll Rand Co |
| 187954PC104 | 5/9 Secondary reference Ingersoll Rand Co |
| 187451PC104 | 5/9 Secondary reference Ingersoll Rand Co |
| N234PC136 | 5/9 Secondary reference Ingersoll Rand Co |
| 187451PC104 | 5/9 Secondary reference U.S. Government activity |
| N326PC136 | 5/9 Secondary reference Ingersoll Rand Co |
| N326PC136 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N251PC136 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| N242PC136 | 5/9 Secondary reference U.S. Government activity |
| N327PC136 | 5/9 Secondary reference Ingersoll Rand Co |
| 187786PC104 | 5/9 Secondary reference Ingersoll Rand Co |
| 187954PC104 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 187467PC104 | 5/9 Secondary reference U.S. Government activity |
| N392PC136 | 5/9 Secondary reference U.S. Government activity |
| W17177PP | 5/9 Secondary reference U.S. Government activity |
| NSD13326-136 | 5/9 Secondary reference Ingersoll Rand Co |
| N251PC136 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N392PC136 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| N242PC136 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4310-00-216-7776 is a Plate,unloader Valve,compressor, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-216-7776 has 2 manufacturer part numbers on file: 6CS6B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), N400PC136 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for 6CS6B: General Characteristics Item Description: BRASS; 4.350 IN. OD; 0.625 IN. O/A H; ONE SIDE IS RECESSED 4.088 IN. DIA,0.255 IN. DP; W/2 THD HOLES 0.250-20 UNC ON 3.375 IN. DIA BOLT CIRCLE,180 DEG APART,AND VARIOUS OTHER HOLES AND SLOTS 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.
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.