The Guide,valve Stem, cataloged under National Stock Number 2805-00-997-6141, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 13 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2805-00-997-6141 |
| Primary Part Number | 6409126A |
| Item Name | Guide,valve Stem |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| FSC Application Data | GASOLINE RECIPROCATING ENGINE,EXCEPT AIRCRAFT PRIME MOVING AND STARTING ENGINE TYPES |
| Major Diameter Length | 2.344 INCHES NOMINAL IN |
| Bb End Shank Diameter | 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN |
| Style Designator | PLAIN, SHOULDERED |
| Bore Counterbore | NOT INCLUDED |
| Outside Diameter | 0.7820 INCHES MINIMUM AND 0.7825 INCHES MAXIMUM IN |
| Aa End Radius | 0.063 INCHES NOMINAL IN |
| Bb End Radius | 0.031 INCHES NOMINAL IN |
| Bore Diameter | 0.4910 INCHES MINIMUM AND 0.4930 INCHES MAXIMUM IN |
| Material | IRON CAST |
| Shoulder First Fillet Radius | 0.250 INCHES NOMINAL IN |
| Metallic Hardness Rating | 97.0 MINIMUM ROCKWELL B |
| Bore Countersink | NOT INCLUDED |
| 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 |
|---|---|
| 6409126A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 6409126A | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2805-00-997-6141 is a Guide,valve Stem, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-997-6141 has 1 manufacturer part number on file: 6409126A (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 6409126A: FSC Application Data: GASOLINE RECIPROCATING ENGINE,EXCEPT AIRCRAFT PRIME MOVING AND STARTING ENGINE TYPES; Major Diameter Length: 2.344 INCHES NOMINAL IN; Bb End Shank Diameter: 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN; Style Designator: PLAIN, SHOULDERED. 13 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.