The Seat,hull Drain Poppet Valve, cataloged under National Stock Number 2590-01-651-9759, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Flowline Valve and Controls, L.l.c.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 2590-01-651-9759 |
| Primary Part Number | 76N-4T006 |
| Item Name | Seat,hull Drain Poppet Valve |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Flowline Valve and Controls, L.l.c. |
| Status | ACTIVE |
| Material | COPPER AND NICKEL AND CARBON OVERALL |
| 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 |
|---|---|
| 76N-4T006 PRIMARY | Flowline Valve and Controls, L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| LINE 1:FL 76N-0150-1AB-R1 | D/9 Drawing number reference only Flowline Valve and Controls, L.l.c. |
| LINE 2:REV D NO.4 P/N 76N-4T006 | D/9 Drawing number reference only Flowline Valve and Controls, L.l.c. |
NSN 2590-01-651-9759 is a Seat,hull Drain Poppet Valve, manufactured by Flowline Valve and Controls, L.l.c., classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-651-9759 has 1 manufacturer part number on file: 76N-4T006 (Flowline Valve and Controls, L.l.c.).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-652-4410, 4820-01-652-4412, 4820-01-652-4868. Verify interchangeability with system specifications before substitution.
Key specifications for 76N-4T006: Special Features: SEAT IS MONEL WITH A CARBON CENTER AND IS FIRE SAFE; Part Name Assigned by Controlling Agency: SEAT; End Item Identification: VALVE,BTFL 6; Material: COPPER AND NICKEL AND CARBON OVERALL. 1 specification is 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.