NSN 1680-00-004-9804 · NIIN 000049804 · Part number MB300-375
Martin-Baker Aircraft Company Limited · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE U1604
Government record, cited
NSN 1680-00-004-9804 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-004-9804. Manufacturer of record part number: MB300-375.
Also searched as1680-00-004-9804 ·
1680000049804 ·
NIIN 000049804 ·
00-004-9804 ·
FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE U1604 · MB300-375
General Characteristics Item Description: STAINLESS STEEL,1.835 IN. LG,1.625 IN. W IN
1 manufacturer part number on file
Manufacturer of record: Martin-Baker Aircraft Company Limited
Identification
NSN: 1680-00-004-9804
NIIN: 000049804
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: MB300-375
Manufacturer: Martin-Baker Aircraft Company Limited
General Description
The Slipper,middle Main Bearing, cataloged under National Stock Number 1680-00-004-9804, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Martin-Baker Aircraft Company Limited. 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
1680-00-004-9804
Primary Part Number
MB300-375
Item Name
Slipper,middle Main Bearing
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 1680-00-004-9804?
NSN 1680-00-004-9804 is a Slipper,middle Main Bearing, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
What part numbers are listed for NSN 1680-00-004-9804?
NSN 1680-00-004-9804 has 1 manufacturer part number on file: MB300-375 (Martin-Baker Aircraft Company Limited).
What are the specifications of MB300-375?
Key specifications for MB300-375: General Characteristics Item Description: STAINLESS STEEL,1.835 IN. LG,1.625 IN. W IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 1680-00-004-9804 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.