PartsTable TECHNICAL DATA SHEET
NSN 1680-00-602-7145Government record, cited

Valve Assembly, Drop, Tank1680-00-602-7145

NSN 1680-00-602-7145 · NIIN 006027145 · Part number 3543434
Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 8X044
Government record, cited
NSN 1680-00-602-7145 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-602-7145. Manufacturer of record part number: 3543434.
Also searched as  1680-00-602-7145 · 1680006027145 · NIIN 006027145 · 00-602-7145 · FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 8X044 · 3543434
Nearby stock numbers  ·
Features
  • Valve Assembly,drop,tank — FSC 1680
  • General Characteristics Item Description: C/O 3 RETAINERS ALUMINUM ALLOY P/N3543434-5; 1 BODY P/N3543434-1; 3 3/8 IN. DIA CRES BALLS; 1 PLUG P/NAN913-1D; 3 SPRINGS P/N2447689; 12 GASKETS P/NAN901-4C IN
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company
Identification
  • NSN: 1680-00-602-7145
  • NIIN: 006027145
  • FSC: 1680 — Miscellaneous Aircraft Accessories and Components
  • FSG: 16 — Aircraft Components and Accessories
  • Primary part number: 3543434
  • Manufacturer: Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company
General Description

The Valve Assembly,drop,tank, cataloged under National Stock Number 1680-00-602-7145, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-00-602-7145
Primary Part Number3543434
Item NameValve Assembly,drop,tank
FSC / FSG1680 / 16 — Miscellaneous Aircraft Accessories and Components
ManufacturerDerco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company
StatusACTIVE
General Characteristics Item DescriptionC/O 3 RETAINERS ALUMINUM ALLOY P/N3543434-5; 1 BODY P/N3543434-1; 3 3/8 IN. DIA CRES BALLS; 1 PLUG P/NAN913-1D; 3 SPRINGS P/N2447689; 12 GASKETS P/NAN901-4C IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
3543434 Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA)
3543434 Kitco Llc (USA)
Reference documents
ReferenceMeaning
3543434 3/2 Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 1680 — Miscellaneous Aircraft Accessories and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1680-00-001-1736
DUCT ASSEMBLY,BRANCHED
1680-00-003-3721
1680-00-003-3721 · Item name not on file
1680-00-009-3782
PISTON,EJECTOR,INNER
1680-00-009-6180
1680-00-009-6180 · Item name not on file
1680-00-475-0002
TIP,RUBBER CONTROL
1680-00-696-6170
ADAPTER,SCREW END A
1680-00-867-7158
COVER,GEARCASE
1680-00-885-0923
KNOB ASSY,LANDING G

Frequently Asked Questions

What is NSN 1680-00-602-7145?

NSN 1680-00-602-7145 is a Valve Assembly,drop,tank, manufactured by Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What part numbers are listed for NSN 1680-00-602-7145?

NSN 1680-00-602-7145 has 2 manufacturer part numbers on file: 3543434 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 3543434 (Kitco Llc).

What are the specifications of 3543434?

Key specifications for 3543434: General Characteristics Item Description: C/O 3 RETAINERS ALUMINUM ALLOY P/N3543434-5; 1 BODY P/N3543434-1; 3 3/8 IN. DIA CRES BALLS; 1 PLUG P/NAN913-1D; 3 SPRINGS P/N2447689; 12 GASKETS P/NAN901-4C IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 1680-00-602-7145 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.

What is the DEMIL code for NSN 1680-00-602-7145?

NSN 1680-00-602-7145 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

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.
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