NSN 1680-01-537-3004 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-537-3004. Manufacturer of record part number: HM026-039-21.
Also searched as1680-01-537-3004 ·
1680015373004 ·
NIIN 015373004 ·
01-537-3004 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 1T765 · HM026-039-21 · 96307-03800-101
Manufacturer of record: Robertson Fuel Systems, L.l.c.
Identification
NSN: 1680-01-537-3004
NIIN: 015373004
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: HM026-039-21
Manufacturer: Robertson Fuel Systems, L.l.c.
General Description
The Signal Conditioner,, cataloged under National Stock Number 1680-01-537-3004, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1680-01-537-3004
Primary Part Number
HM026-039-21
Item Name
Signal Conditioner,
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.
1680-00-000-0144
CUSHION,SEAT BACK,AIRCRAFT
1680-00-001-1401
1680-00-001-1401 · Item name not on file
1680-00-001-1402
1680-00-001-1402 · Item name not on file
1680-00-001-1403
1680-00-001-1403 · Item name not on file
1680-00-001-1404
COVER,INERTIA REEL
1680-00-001-1730
SHIELD,THERMAL RADI
1680-00-001-1731
LEVER,REMOTE CONTROL
1680-00-001-1736
DUCT ASSEMBLY,BRANCHED
Frequently Asked Questions
What is NSN 1680-01-537-3004?
NSN 1680-01-537-3004 is a Signal Conditioner,, 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 1680-01-537-3004?
NSN 1680-01-537-3004 has 2 manufacturer part numbers on file: HM026-039-21 (Robertson Fuel Systems, L.l.c.), 96307-03800-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
What are the specifications of HM026-039-21?
Key specifications for HM026-039-21: Part Name Assigned by Controlling Agency: SIGNAL CONDITIONER; End Item Identification: MH60S KNIGHTHAWK. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1680-01-537-3004 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 1680-01-537-3004?
NSN 1680-01-537-3004 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.