The Seat,valve, cataloged under National Stock Number 4820-01-440-9121, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Newmans Inc New Jersey Div. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-440-9121 |
| Primary Part Number | 18S-FS2 2IN ITEM 2 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Newmans Inc New Jersey Div |
| Status | ACTIVE |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 410 OVERALL |
| 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 |
|---|---|
| 18S-FS2 2IN ITEM 2 PRIMARY | Newmans Inc New Jersey Div (USA) |
| A046200 2IN ITEM 2 | Newmans Inc New Jersey Div (USA) |
| Reference | Meaning |
|---|---|
| 18S-FS2 2IN ITEM 2 | 5/9 Secondary reference Key Industries Inc Dba Liberty Equipment and Supply Co |
| A046200 2IN ITEM 2 | 5/9 Secondary reference Key Industries Inc Dba Liberty Equipment and Supply Co |
NSN 4820-01-440-9121 is a Seat,valve, manufactured by Newmans Inc New Jersey Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-9121 has 2 manufacturer part numbers on file: 18S-FS2 2IN ITEM 2 (Newmans Inc New Jersey Div), A046200 2IN ITEM 2 (Newmans Inc New Jersey Div).
Key specifications for 18S-FS2 2IN ITEM 2: Style Designator: PLAIN FLANGED; Material Document and Classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; End Item Identification: 4930-01-230-0781; STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL COMP 410 OVERALL. 4 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.