The Seat,valve, cataloged under National Stock Number 4820-00-200-9055, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-200-9055 |
| Primary Part Number | NC008805 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.150 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Flange Diameter | 2.427 INCHES MINIMUM AND 2.432 INCHES MAXIMUM IN |
| Body Outside Diameter | 2.177 INCHES MINIMUM AND 2.182 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 1.250 INCHES NOMINAL IN |
| Under Flange Height | 0.135 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Seat Angle in Deg | 35.000 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 |
|---|---|
| HBV-A2-10-0005-04 | B N L Industries Inc (USA) |
| NC008805 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| HBV-S2-10-0001-04 | B N L Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 803-500/003-X5X | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 002-18-14-0001-0001 | 5/9 Secondary reference Circor Intl Inc |
| 298-00-204PC14- | C/1 Advisory reference — outside the item-of-supply concept Leslie Controls, Inc. Dba Leslie Controls Inc |
| 218-14-01 | 5/9 Secondary reference Circor Intl Inc |
| N008805 | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
| 803-5001003-X5X | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 002-18-14-0001- | C/1 Advisory reference — outside the item-of-supply concept Leslie Controls, Inc. Dba Leslie Controls Inc |
| 803-5001003 PC4 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 008805 | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 4820-00-200-9055 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-200-9055 has 3 manufacturer part numbers on file: HBV-A2-10-0005-04 (B N L Industries Inc), NC008805 (Leslie Controls, Inc. Dba Leslie Controls Inc), HBV-S2-10-0001-04 (B N L Industries Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4820-00-291-0411, 5330-00-871-6148, 4820-01-120-8630. Verify interchangeability with system specifications before substitution.
Key specifications for NC008805: Flange Seat to Disk End Height: 0.150 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN; Flange Diameter: 2.427 INCHES MINIMUM AND 2.432 INCHES MAXIMUM IN; Body Outside Diameter: 2.177 INCHES MINIMUM AND 2.182 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.