NSN 4921-01-331-6745 · NIIN 013316745 · Part number 6558379
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 10001
Government record, cited
NSN 4921-01-331-6745 — this item is cataloged by the U.S. Government under National Stock Number 4921-01-331-6745. Manufacturer of record part number: 6558379.
Also searched as4921-01-331-6745 ·
4921013316745 ·
NIIN 013316745 ·
01-331-6745 ·
FSC 4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment · CAGE 10001 · 6558379
Nearby stock numbers← 4921-01-331-4581
·
4921-01-333-1857 Control Group →
Features
Removal Tool,wear Plate,coolant — FSC 4921
General Characteristics Item Description: ALUMINUM,6061-T6; 7.250 IN. O/A LG; 1.057 IN. O/A DIA,125 MICROINCH O/A SURFACE FINISH IN
1 manufacturer part number on file
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Identification
NSN: 4921-01-331-6745
NIIN: 013316745
FSC: 4921 — Torpedo Maintenance, Repair, and Checkout Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: 6558379
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description
The Removal Tool,wear Plate,coolant, cataloged under National Stock Number 4921-01-331-6745, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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.
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
No interchangeability data on file.
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.
4921-00-001-6500
4921-00-001-6500 · Item name not on file
4921-00-003-1270
4921-00-003-1270 · Item name not on file
4921-00-003-1271
4921-00-003-1271 · Item name not on file
4921-00-003-1273
TEST SET SUBASSEMBLY,TORPEDO COM
4921-00-003-1274
4921-00-003-1274 · Item name not on file
4921-00-003-1275
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 4921-01-331-6745?
NSN 4921-01-331-6745 is a Removal Tool,wear Plate,coolant, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
What part numbers are listed for NSN 4921-01-331-6745?
NSN 4921-01-331-6745 has 1 manufacturer part number on file: 6558379 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
What are the specifications of 6558379?
Key specifications for 6558379: General Characteristics Item Description: ALUMINUM,6061-T6; 7.250 IN. O/A LG; 1.057 IN. O/A DIA,125 MICROINCH O/A SURFACE FINISH IN; End Item Identification: TORPEDO MK-48. 1 specification is documented in the U.S. Government catalog.
Is NSN 4921-01-331-6745 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.
What is the DEMIL code for NSN 4921-01-331-6745?
NSN 4921-01-331-6745 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.