NSN 2590-01-651-9643 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-651-9643. Manufacturer of record part number: 76N-4R002.
Also searched as2590-01-651-9643 ·
2590016519643 ·
NIIN 016519643 ·
01-651-9643 ·
FSC 2590 Miscellaneous Vehicular Components · CAGE 6SPR5 · 76N-4R002 · LINE2:REV D NO.4 P/N · LINE1:FL 77N-0150-1SS-R1
Material: STEEL CORROSION RESISTING AND CARBON OVERALL
1 manufacturer part number on file
Manufacturer of record: Flowline Valve and Controls, L.l.c.
Identification
NSN: 2590-01-651-9643
NIIN: 016519643
FSC: 2590 — Miscellaneous Vehicular Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 76N-4R002
Manufacturer: Flowline Valve and Controls, L.l.c.
General Description
The Seat,hull Drain Poppet Valve, cataloged under National Stock Number 2590-01-651-9643, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2590-01-651-9643
Primary Part Number
76N-4R002
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
STEEL CORROSION RESISTING AND CARBON OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-01-651-975776N-9G004POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
5330-01-651-976576N-9G006POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
5330-01-651-977776N-7L004POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
5330-01-651-978276N-7L006POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
4820-01-652-442376N-5C025POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
4820-01-652-487276N-5C003POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
4820-01-652-672276N-2P002POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
4820-01-652-673276N-2P025POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
4820-01-652-675276N-2P003POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Flowline Valve and Controls, L.l.c.
NSN 2590-01-651-9643 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.
What part numbers are listed for NSN 2590-01-651-9643?
NSN 2590-01-651-9643 has 1 manufacturer part number on file: 76N-4R002 (Flowline Valve and Controls, L.l.c.).
What NSN replaces 2590-01-651-9643?
9 possible matches (shared part number, not a government interchangeability claim): 5330-01-651-9757, 5330-01-651-9765, 5330-01-651-9777. Verify interchangeability with system specifications before substitution.
What are the specifications of 76N-4R002?
Key specifications for 76N-4R002: Special Features: VALVE IS 316 STAINLESS STEEL WITH A CARBON FILLED CENTER;IS FIRE SAFE; Part Name Assigned by Controlling Agency: SEAT; End Item Identification: VALVE,BTFL 2; Material: STEEL CORROSION RESISTING AND CARBON OVERALL. 1 specification is documented in the U.S. Government catalog.
Is NSN 2590-01-651-9643 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.