NSN 4921-01-573-0428 · NIIN 015730428 · Part number 8166369
Naval Sea Systems Command · FSC 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 53711
Government record, cited
NSN 4921-01-573-0428 — this item is cataloged by the U.S. Government under National Stock Number 4921-01-573-0428. Manufacturer of record part number: 8166369.
Also searched as4921-01-573-0428 ·
4921015730428 ·
NIIN 015730428 ·
01-573-0428 ·
FSC 4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment · CAGE 53711 · 8166369
Functional Description: USED TO INSTALL IDLER GEAR LOWER BEARING
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4921-01-573-0428
NIIN: 015730428
FSC: 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: 8166369
Manufacturer: Naval Sea Systems Command
General Description
The Test Set,torpedo, cataloged under National Stock Number 4921-01-573-0428, is classified within Federal Supply Class 4921 (Torpedo Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, 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.
Other items in FSC 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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4921-00-003-1273
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4921-00-003-1274 · Item name not on file
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4921-00-003-1275 · Item name not on file
4921-00-003-1276
4921-00-003-1276 · Item name not on file
4921-00-003-1278
4921-00-003-1278 · Item name not on file
Frequently Asked Questions
What is NSN 4921-01-573-0428?
NSN 4921-01-573-0428 is a Test Set,torpedo, manufactured by Naval Sea Systems Command, classified under FSC 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
What part numbers are listed for NSN 4921-01-573-0428?
NSN 4921-01-573-0428 has 1 manufacturer part number on file: 8166369 (Naval Sea Systems Command).
What are the specifications of 8166369?
Key specifications for 8166369: Diameter: 1.500 INCHES NOMINAL IN; Overall Length: 5.000 INCHES NOMINAL IN; Special Features: KNURLED GRIP; ROUND WITH FLATTED SIDES; 1.35 IN. FLAT TO FLAT DISTANCE IN; Functional Description: USED TO INSTALL IDLER GEAR LOWER BEARING. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4921-01-573-0428 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.