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NSN 3020-01-508-2286Government record, cited
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Guard, Mechanical Drive3020-01-508-2286

NSN 3020-01-508-2286 · NIIN 015082286 · Part number H73918-01-4-5
Defense Maritime Solutions, Inc. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 0EYA6
Government record, cited
NSN 3020-01-508-2286 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-508-2286. Manufacturer of record part number: H73918-01-4-5.
Also searched as  3020-01-508-2286 · 3020015082286 · NIIN 015082286 · 01-508-2286 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 0EYA6 · H73918-01-4-5 · US73918-01 · US73918-01 H73918-01-4-5 · US73918-01 H73918-01-4-5
Nearby stock numbers  ·
Features
  • Guard,mechanical Drive — FSC 3020
  • 1 manufacturer part number on file
  • Manufacturer of record: Defense Maritime Solutions, Inc.
Identification
  • NSN: 3020-01-508-2286
  • NIIN: 015082286
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: H73918-01-4-5
  • Manufacturer: Defense Maritime Solutions, Inc.
General Description

The Guard,mechanical Drive, cataloged under National Stock Number 3020-01-508-2286, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Defense Maritime Solutions, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameGuard,mechanical Drive
FSC / FSG3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)
ManufacturersDefense Maritime Solutions, Inc. (CAGE 0EYA6)
Technical Specifications
ParameterValue
NSN3020-01-508-2286
Primary Part NumberH73918-01-4-5
Item NameGuard,mechanical Drive
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerDefense Maritime Solutions, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5307-01-508-2897H73918-01-8-3 POSSIBLE MATCH
STUD,PLAIN
Possible match (shared part number)Defense Maritime Solutions, Inc.
5306-01-508-3017H73918-01-7-2 POSSIBLE MATCH
BOLT,MACHINE
Possible match (shared part number)Defense Maritime Solutions, Inc.
5305-01-508-4070H73918-01-8-2 POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Defense Maritime Solutions, Inc.
5360-01-508-9219H73918-01-3-1 POSSIBLE MATCH
SPRING ASSY,SUPPORT
Possible match (shared part number)Defense Maritime Solutions, Inc.
5360-01-508-9234H73918-01-3-3 POSSIBLE MATCH
SPRING ASSY,BRDG
Possible match (shared part number)Defense Maritime Solutions, Inc.
5360-01-508-9237H73918-01-3-4 POSSIBLE MATCH
SPRING ASSY,BACKING
Possible match (shared part number)Defense Maritime Solutions, Inc.
5325-01-508-9259H73918-01-1-7 POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Defense Maritime Solutions, Inc.
5325-01-508-9268H73918-01-1-6 POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Defense Maritime Solutions, Inc.
Cross-Reference Index
Part NumberManufacturer
H73918-01-4-5 PRIMARY Defense Maritime Solutions, Inc. (USA)
Reference documents
ReferenceMeaning
US73918-01 D/9 Drawing number reference only
Wartsila Lips Inc
H73918-01-4-5 3/9 Design control — primary reference
Wartsila Lips Inc
US73918-01 H73918-01-4-5 5/9 Secondary reference
Wartsila Lips Inc
US73918-01 H73918-01-4-5 C/1 Advisory reference — outside the item-of-supply concept
Defense Maritime Solutions, Inc.
Related Parts
5307-01-508-2897POSSIBLE MATCH
STUD,PLAIN
H73918-01-8-3
5306-01-508-3017POSSIBLE MATCH
BOLT,MACHINE
H73918-01-7-2
5305-01-508-4070POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
H73918-01-8-2
5360-01-508-9219POSSIBLE MATCH
SPRING ASSY,SUPPORT
H73918-01-3-1
5360-01-508-9234POSSIBLE MATCH
SPRING ASSY,BRDG
H73918-01-3-3
5360-01-508-9237POSSIBLE MATCH
SPRING ASSY,BACKING
H73918-01-3-4
5325-01-508-9259POSSIBLE MATCH
RING,RETAINING
H73918-01-1-7
5325-01-508-9268POSSIBLE MATCH
RING,RETAINING
H73918-01-1-6

Frequently Asked Questions

What is NSN 3020-01-508-2286?

NSN 3020-01-508-2286 is a Guard,mechanical Drive, manufactured by Defense Maritime Solutions, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-508-2286?

NSN 3020-01-508-2286 has 1 manufacturer part number on file: H73918-01-4-5 (Defense Maritime Solutions, Inc.).

What NSN replaces 3020-01-508-2286?

8 possible matches (shared part number, not a government interchangeability claim): 5307-01-508-2897, 5306-01-508-3017, 5305-01-508-4070. Verify interchangeability with system specifications before substitution.

Is NSN 3020-01-508-2286 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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