PartsTable TECHNICAL DATA SHEET
NSN 4520-00-784-0651Government record, cited

Sleeve Piston Fuel4520-00-784-0651

NSN 4520-00-784-0651 · NIIN 007840651
FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal
Government record, cited
Also searched as  4520-00-784-0651 · 4520007840651 · NIIN 007840651 · 00-784-0651 · FSC 4520 Space and Water Heating Equipment · 121222A · 121222A · 121222A · 121222A
Nearby stock numbers  ·
Features
  • Sleeve Piston Fuel — FSC 4520
Identification
  • NSN: 4520-00-784-0651
  • NIIN: 007840651
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
General Description

The Sleeve Piston Fuel, cataloged under National Stock Number 4520-00-784-0651, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts
Item NameSleeve Piston Fuel
FSC / FSG4520 — Space and Water Heating Equipment (FSG 45)
Technical Specifications
ParameterValue
NSN4520-00-784-0651
Item NameSleeve Piston Fuel
FSC / FSG4520 / 45 — Space and Water Heating Equipment
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
121222A 3/9 Design control — primary reference
U.S. Government activity
121222A 3/2 Design control — primary reference
U.S. Government activity
121222A 5/9 Secondary reference
U.S. Government activity
121222A 5/9 Secondary reference
Drs Environmental Systems Inc
No interchangeability data on file.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE

Frequently Asked Questions

What is NSN 4520-00-784-0651?

NSN 4520-00-784-0651 is a Sleeve Piston Fuel, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

Is NSN 4520-00-784-0651 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.
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