NSN 2915-00-440-6477 · NIIN 004406477 · Part number U517591
Triumph Thermal Systems, Llc · FSC 2915 — Engine Fuel System Components, Aircraft and Missile Prime Movers · FSG 29 — Engine Accessories · CAGE 78943
Government record, cited
NSN 2915-00-440-6477 — this item is cataloged by the U.S. Government under National Stock Number 2915-00-440-6477. Manufacturer of record part number: U517591.
Also searched as2915-00-440-6477 ·
2915004406477 ·
NIIN 004406477 ·
00-440-6477 ·
FSC 2915 Engine Fuel System Components, Aircraft and Missile Prime Movers · CAGE 78943 · U517591
General Characteristics Item Description: 1.535 IN. MIN 1.538 IN. MAX O/A DIA IN
1 manufacturer part number on file
Manufacturer of record: Triumph Thermal Systems, Llc
Identification
NSN: 2915-00-440-6477
NIIN: 004406477
FSC: 2915 — Engine Fuel System Components, Aircraft and Missile Prime Movers
FSG: 29 — Engine Accessories
Primary part number: U517591
Manufacturer: Triumph Thermal Systems, Llc
General Description
The Thermostatic Element, cataloged under National Stock Number 2915-00-440-6477, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Triumph Thermal Systems, Llc. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2915-00-440-6477
Primary Part Number
U517591
Item Name
Thermostatic Element
FSC / FSG
2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers
Other items in FSC 2915 — Engine Fuel System Components, Aircraft and Missile Prime Movers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2915-00-001-2369
2915-00-001-2369 · Item name not on file
2915-00-001-2370
PLATE,PRECHECK VALVE COVER
2915-00-001-2627
PUMP,FUEL,JET ENGINE
2915-00-001-4681
2915-00-001-4681 · Item name not on file
2915-00-001-5421
2915-00-001-5421 · Item name not on file
2915-00-001-5423
VALVE,FUEL CONTROL
2915-00-001-9122
2915-00-001-9122 · Item name not on file
2915-00-001-9139
2915-00-001-9139 · Item name not on file
Frequently Asked Questions
What is NSN 2915-00-440-6477?
NSN 2915-00-440-6477 is a Thermostatic Element, manufactured by Triumph Thermal Systems, Llc, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
What part numbers are listed for NSN 2915-00-440-6477?
NSN 2915-00-440-6477 has 1 manufacturer part number on file: U517591 (Triumph Thermal Systems, Llc).
What are the specifications of U517591?
Key specifications for U517591: General Characteristics Item Description: 1.535 IN. MIN 1.538 IN. MAX O/A DIA IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2915-00-440-6477 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 2915-00-440-6477?
NSN 2915-00-440-6477 has DEMIL Code B. 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.