The Valve,air Starting, cataloged under National Stock Number 2815-00-377-2843, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cooper Machinery Services Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2815-00-377-2843 |
| Primary Part Number | 3A-2128 |
| Item Name | Valve,air Starting |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Cooper Machinery Services Llc |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS,4 IN.O/A LG,1-1/2 IN.OD VALVE HEAD,5/8 OD STEM,1-1/4 IN.OD BOTTOM OF STEM,21/32 IN.ID,1 IN.LG,HOLE IN BOTTOM OF STEM,1/2 IN.DIA PROJECTION ON TOP OF VALVE HEAD,3/32 IN.WSLOT IN PROJECTION,1/4-20 INTERNAL THD,UNC IN PROJECTION,11/16 IN.DEEP 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 |
|---|---|
| 3A-2128 PRIMARY | Cooper Machinery Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 3A2128 | 5/9 Secondary reference Cooper Cameron Corp Ajax-Superior Div |
NSN 2815-00-377-2843 is a Valve,air Starting, manufactured by Cooper Machinery Services Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-377-2843 has 1 manufacturer part number on file: 3A-2128 (Cooper Machinery Services Llc).
Key specifications for 3A-2128: General Characteristics Item Description: BRASS,4 IN.O/A LG,1-1/2 IN.OD VALVE HEAD,5/8 OD STEM,1-1/4 IN.OD BOTTOM OF STEM,21/32 IN.ID,1 IN.LG,HOLE IN BOTTOM OF STEM,1/2 IN.DIA PROJECTION ON TOP OF VALVE HEAD,3/32 IN.WSLOT IN PROJECTION,1/4-20 INTERNAL THD,UNC IN PROJECTION,11/16 IN.DEEP 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.