The Valve,poppet,engine, cataloged under National Stock Number 2815-00-288-3639, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-288-3639 |
| Primary Part Number | R61 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Carbon Relief Groove | NOT INCLUDED |
| Head Height | 0.1719 INCHES NOMINAL IN |
| Neck Radius | 0.3750 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 36.0 ROCKWELL C MINIMUM STEM |
| FSC Application Data | DIESEL ENGINE |
| Metallic Hardness Rating and Location | 43.0 ROCKWELL C MAXIMUM STEM |
| Groove Width | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN |
| Stem Diameter | 0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN |
| Seat Angle in Deg | 45.0 |
| Outside Diameter | 1.5000 INCHES NOMINAL IN |
| Groove Diameter | 0.3290 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM IN |
| Chamfer Angle in Deg | 45.0 |
| Head Style | FLAT |
| Distance From Groove to Stem End | 0.4850 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN |
| Chamfer Length | 0.0312 INCHES NOMINAL IN |
| Stem Length | 5.8281 INCHES NOMINAL IN |
| Stem Style | GROOVED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4LR1PCR61 | Berry-Hill Corp (USA) |
| 668APCR61 | Hatch & Kirk, Inc. (USA) |
| R61 PRIMARY | Hatch & Kirk, Inc. (USA) |
| 6LR101BPC9 | Hatch & Kirk, Inc. (USA) |
| 6LR102CPC61 | Berry-Hill Corp (USA) |
| YT199S61-0801PC9 | Naval Sea Systems Command (USA) |
| 4LR101PC9 | Berry-Hill Corp (USA) |
| 700PCR61 | Hatch & Kirk, Inc. (USA) |
| YTL1S61-842PC44 | Naval Ship Systems Command (USA) |
| 738PCR61 | Berry-Hill Corp (USA) |
| 682APCR61 | Berry-Hill Corp (USA) |
| 4LR101BPC69 | Hatch & Kirk, Inc. (USA) |
| 4LR102PC44 | Hatch & Kirk, Inc. (USA) |
| R61 | Berry-Hill Corp (USA) |
| YTL1S61-854PC4 | Naval Sea Systems Command (USA) |
| 6LR142FPC9 | Hatch & Kirk, Inc. (USA) |
| YF292S61-841PC9 | Naval Sea Systems Command (USA) |
| S6100657452PC44 | Naval Ship Systems Command (USA) |
| 4LR114APC4 | Hatch & Kirk, Inc. (USA) |
| 4LR101BPC69 | Berry-Hill Corp (USA) |
NSN 2815-00-288-3639 is a Valve,poppet,engine, manufactured by Hatch & Kirk, Inc., classified under FSC 2815 (No Item Name Available). Status: active.
NSN 2815-00-288-3639 has 50 cross-referenced part numbers: 4LR1PCR61 (Berry-Hill Corp), 668APCR61 (Hatch & Kirk, Inc.), R61 (Hatch & Kirk, Inc.), 6LR101BPC9 (Hatch & Kirk, Inc.), 6LR102CPC61 (Berry-Hill Corp) and 45 more.
There are 5 known substitutes for 2815-00-288-3639: 3445-00-001-5578, 2805-00-339-1392, 2815-00-355-1655 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for R61: Carbon Relief Groove: NOT INCLUDED; Head Height: 0.1719 INCHES NOMINAL IN; Neck Radius: 0.3750 INCHES NOMINAL IN; Metallic Hardness Rating and Location: 36.0 ROCKWELL C MINIMUM STEM. 17 total characteristics are documented in the Federal Logistics Information System.