Chest Steam 2990-01-268-7799 NSN 2990-01-268-7799 · NIIN 012687799 · Part number HC-50D-3
Siemens Energy, Inc. · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 16712
NSN 2990-01-268-7799 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-268-7799. Manufacturer of record part number: HC-50D-3 .
Also searched as
2990-01-268-7799 ·
2990012687799 ·
NIIN 012687799 ·
01-268-7799 ·
FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 16712 · HC-50D-3 · 8C-50D-3
Nearby stock numbers
← 2990-01-268-7451 Pipe, Exhaust
·
2990-01-268-8339 →
Features
Chest Steam — FSC 2990 1 manufacturer part number on file Manufacturer of record: Siemens Energy, Inc.
Identification
NSN: 2990-01-268-7799
NIIN: 012687799
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: HC-50D-3
Manufacturer: Siemens Energy, Inc.
General Description
The Chest Steam, cataloged under National Stock Number 2990-01-268-7799, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Catalog Facts
Item Name Chest Steam FSC / FSG 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) Manufacturers Siemens Energy, Inc. (CAGE 16712)
Technical Specifications
Parameter Value NSN 2990-01-268-7799 Primary Part Number HC-50D-3 Item Name Chest Steam FSC / FSG 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft Manufacturer Siemens Energy, Inc. Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part Number Manufacturer
HC-50D-3 PRIMARY Siemens Energy, Inc. (USA)
Reference documents
Reference Meaning
8C-50D-3
C/1 Advisory reference — outside the item-of-supply concept Siemens Energy, Inc.
No interchangeability data on file.
Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2990-00-001-0001
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2990-00-001-1248 · Item name not on file
2990-00-001-1250
2990-00-001-1250 · Item name not on file
2990-00-001-2055
2990-00-001-2055 · Item name not on file
2990-00-001-3498
2990-00-001-3498 · Item name not on file
2990-00-001-3520
2990-00-001-3520 · Item name not on file
2990-00-001-3521
2990-00-001-3521 · Item name not on file
2990-00-001-3522
CAP ASSEMBLY,MUFFLE
Frequently Asked Questions
What is NSN 2990-01-268-7799?
NSN 2990-01-268-7799 is a Chest Steam, manufactured by Siemens Energy, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
What part numbers are listed for NSN 2990-01-268-7799?
NSN 2990-01-268-7799 has 1 manufacturer part number on file: HC-50D-3 (Siemens Energy, Inc.).
Is NSN 2990-01-268-7799 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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