The Seat,valve, cataloged under National Stock Number 4820-01-287-4875, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-287-4875 |
| Primary Part Number | 32487CP |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.096 INCHES NOMINAL IN |
| Flange Diameter | 0.730 INCHES NOMINAL IN |
| Body Outside Diameter | 0.563 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.255 INCHES NOMINAL IN |
| Under Flange Height | 0.250 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| 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 | S |
| Part Number | Manufacturer |
|---|---|
| 32487CP | Naval Inventory Control Point Mechanicsburg (USA) |
| SC01-287-4875 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| 63750-2 ITEM 5CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 63750-2 ITEM 5 | 5/1 Secondary reference U.S. Government activity |
| 32487 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-287-4875 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-287-4875 has 3 manufacturer part numbers on file: 32487CP (Naval Inventory Control Point Mechanicsburg), SC01-287-4875 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 63750-2 ITEM 5CP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-345-1512. Verify interchangeability with system specifications before substitution.
Key specifications for 32487CP: Flange Seat to Disk End Height: 0.096 INCHES NOMINAL IN; Flange Diameter: 0.730 INCHES NOMINAL IN; Body Outside Diameter: 0.563 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 8 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.