The Seat,valve, cataloged under National Stock Number 4810-00-175-0091, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Wheeler Fleet Solutions, Co.. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-175-0091 |
| Primary Part Number | 1097-50151 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Wheeler Fleet Solutions, Co. |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.312 INCHES NOMINAL IN |
| Flange Diameter | 4.950 INCHES NOMINAL IN |
| Thread Length | 0.855 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | THREADED FLANGED |
| Body Inside Diameter | 4.000 INCHES NOMINAL IN |
| Nominal Thread Size | 4.000 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 1.470 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 1097-50151 PRIMARY | Wheeler Fleet Solutions, Co. (USA) |
| Reference | Meaning |
|---|---|
| 6276-1 | 5/9 Secondary reference Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel |
| 50151 | 5/9 Secondary reference Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel |
NSN 4810-00-175-0091 is a Seat,valve, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-175-0091 has 1 manufacturer part number on file: 1097-50151 (Wheeler Fleet Solutions, Co.).
2 possible matches (shared part number, not a government interchangeability claim): 5905-00-901-5355, 4820-01-220-1805. Verify interchangeability with system specifications before substitution.
Key specifications for 1097-50151: Flange Seat to Disk End Height: 0.312 INCHES NOMINAL IN; Flange Diameter: 4.950 INCHES NOMINAL IN; Thread Length: 0.855 INCHES NOMINAL SINGLE THREADED PORTION IN; Style Designator: THREADED FLANGED. 11 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.