PartsTable TECHNICAL DATA SHEET
NSN 2990-01-393-4640Government record, cited

Muffler, Exhaust2990-01-393-4640

NSN 2990-01-393-4640 · NIIN 013934640 · Part number 1007.4-552/01.1-2
J. W. Marine Equipment, Inc. Dba Marine Equipment Inc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 0PYY3
Government record, cited
NSN 2990-01-393-4640 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-393-4640. Manufacturer of record part number: 1007.4-552/01.1-2.
Also searched as  2990-01-393-4640 · 2990013934640 · NIIN 013934640 · 01-393-4640 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 0PYY3 · 1007.4-552/01.1-2
Nearby stock numbers  ·
Features
  • Muffler,exhaust — FSC 2990
  • 2 manufacturer part numbers on file
  • Manufacturer of record: J. W. Marine Equipment, Inc. Dba Marine Equipment Inc
Identification
  • NSN: 2990-01-393-4640
  • NIIN: 013934640
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 1007.4-552/01.1-2
  • Manufacturer: J. W. Marine Equipment, Inc. Dba Marine Equipment Inc
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-393-4640, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is J. W. Marine Equipment, Inc. Dba Marine Equipment Inc. 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
ParameterValue
NSN2990-01-393-4640
Primary Part Number1007.4-552/01.1-2
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerJ. W. Marine Equipment, Inc. Dba Marine Equipment Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1007.4-552/01.1-2 PRIMARY J. W. Marine Equipment, Inc. Dba Marine Equipment Inc (USA)
1007.4-552/01.1-2 Fr. Fassmer Gmbh & Co. Kg (DEU)
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
BLOWER ASSEMBLY
2990-00-001-1248
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 2990-01-393-4640?

NSN 2990-01-393-4640 is a Muffler,exhaust, manufactured by J. W. Marine Equipment, Inc. Dba Marine Equipment Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-393-4640?

NSN 2990-01-393-4640 has 2 manufacturer part numbers on file: 1007.4-552/01.1-2 (J. W. Marine Equipment, Inc. Dba Marine Equipment Inc), 1007.4-552/01.1-2 (Fr. Fassmer Gmbh & Co. Kg).

What are the specifications of 1007.4-552/01.1-2?

Key specifications for 1007.4-552/01.1-2: Special Features: W/MOUNTING ATTACHMENT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-393-4640 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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