The Insert,engine Valve Seat, cataloged under National Stock Number 2805-00-326-4904, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2805-00-326-4904 |
| Primary Part Number | 220813B |
| Item Name | Insert,engine Valve Seat |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Flange Diameter | 1.496 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.341 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 1.182 INCHES MINIMUM AND 1.192 INCHES MAXIMUM IN |
| Under Flange Height | 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Material | STEEL BODY |
| Seat Angle in Deg | 0.750 NOMINAL |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 220813B PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 220813B | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2805-00-326-4904 is a Insert,engine Valve Seat, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-326-4904 has 1 manufacturer part number on file: 220813B (Brinkley Technology Group Llc Dba Hercules Manufacturing).
Key specifications for 220813B: Flange Seat to Disk End Height: 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Flange Diameter: 1.496 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN; Body Outside Diameter: 1.341 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 9 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.