The Valve,poppet,engine, cataloged under National Stock Number 2805-00-700-6840, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Renk America Llc Div Renk America. Government technical data includes 19 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-700-6840 |
| Primary Part Number | 202160 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Renk America Llc Div Renk America |
| Status | ACTIVE |
| Stem Diameter | 0.5282 INCHES MINIMUM AND 0.5287 INCHES MAXIMUM IN |
| Head Height | 0.1875 INCHES NOMINAL IN |
| Second Groove Width | 0.0520 INCHES NOMINAL IN |
| Stem Length | 4.6295 INCHES MINIMUM AND 4.6395 INCHES MAXIMUM IN |
| Seat Angle in Deg | 44.0 |
| Chamfer Length | 0.0200 INCHES NOMINAL IN |
| Neck Radius | 1.0000 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 45.0 ROCKWELL C MINIMUM TIP |
| Metallic Hardness Rating and Location | 50.0 ROCKWELL C MAXIMUM TIP |
| Outside Diameter | 2.3750 INCHES NOMINAL IN |
| Distance From First Groove to Stem End | 0.3960 INCHES MINIMUM AND 0.4120 INCHES MAXIMUM IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.4460 INCHES MINIMUM AND 0.4520 INCHES MAXIMUM IN |
| Head Style | CONCAVE |
| Distance From Second Groove to Stem End | 0.6490 INCHES MINIMUM AND 0.6930 INCHES MAXIMUM IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.4660 INCHES MINIMUM AND 0.4700 INCHES MAXIMUM IN |
| First Groove Width | 0.3160 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2805-00-700-6840 is a Valve,poppet,engine, manufactured by Renk America Llc Div Renk America, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-700-6840 has 2 manufacturer part numbers on file: 202160 (Renk America Llc Div Renk America), 7006840 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 202160: Stem Diameter: 0.5282 INCHES MINIMUM AND 0.5287 INCHES MAXIMUM IN; Head Height: 0.1875 INCHES NOMINAL IN; Second Groove Width: 0.0520 INCHES NOMINAL IN; Stem Length: 4.6295 INCHES MINIMUM AND 4.6395 INCHES MAXIMUM IN. 19 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.