NSN 1680-01-519-0304 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-519-0304. Manufacturer of record part number: HM026-503-31.
Also searched as1680-01-519-0304 ·
1680015190304 ·
NIIN 015190304 ·
01-519-0304 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 1T765 · HM026-503-31 · HM026-503-11
Nearby stock numbers← 1680-01-519-0302 Aft Tank Kit, Aircra
·
1680-01-519-0305 Aft Tank Kit, Aircr →
Features
Fwd Tank Kit Instal — FSC 1680
1 manufacturer part number on file
Manufacturer of record: Robertson Fuel Systems, L.l.c.
Identification
NSN: 1680-01-519-0304
NIIN: 015190304
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: HM026-503-31
Manufacturer: Robertson Fuel Systems, L.l.c.
General Description
The Fwd Tank Kit Instal, cataloged under National Stock Number 1680-01-519-0304, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Robertson Fuel Systems, L.l.c.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
Parameter
Value
NSN
1680-01-519-0304
Primary Part Number
HM026-503-31
Item Name
Fwd Tank Kit Instal
FSC / FSG
1680 / 16 — Miscellaneous Aircraft Accessories and Components
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 1680-01-519-0304?
NSN 1680-01-519-0304 is a Fwd Tank Kit Instal, manufactured by Robertson Fuel Systems, L.l.c., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What part numbers are listed for NSN 1680-01-519-0304?
NSN 1680-01-519-0304 has 1 manufacturer part number on file: HM026-503-31 (Robertson Fuel Systems, L.l.c.).
What are the specifications of HM026-503-31?
Key specifications for HM026-503-31: Part Name Assigned by Controlling Agency: INAVY - FWD TANK KIT INSTALL; End Item Identification: MH60S KNIGHTHAWK. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1680-01-519-0304 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 1680-01-519-0304?
NSN 1680-01-519-0304 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.