PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D3221-1Control,underwater Log

Lockheed Martin Corporation Div Rms · NSN 6605-00-688-9984 · FSC 6605 · No Item Name Available
Verified by PartsTable
NSN 6605-00-688-9984 — this item is cataloged by the U.S. Government under National Stock Number 6605-00-688-9984. Primary manufacturer part number: D3221-1.
Features
  • Control,underwater Log — FSC 6605
  • 5 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Control,underwater Log, cataloged under National Stock Number 6605-00-688-9984, is classified within Federal Supply Class 6605 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameControl,underwater Log
FSC / FSG6605 — No Item Name Available (FSG 66)
ManufacturersLockheed Martin Corporation Div Rms (CAGE 03538); Gyro Systems Co Inc (CAGE 64846); Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (CAGE 54497)
Technical Specifications
ParameterValue
NSN6605-00-688-9984
Primary Part NumberD3221-1
Item NameControl,underwater Log
FSC / FSG6605 / 66 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3030-00-067-9698187L100 INTERCHANGEABLE
Belt,positive Drive
Emerson Electric Co Browning Mfg Div
3110-00-144-8953 INTERCHANGEABLE
Bearing,ball,annular
6145-00-171-0821 INTERCHANGEABLE
Cable,special Purpose,electrical
6625-00-230-63883221 INTERCHANGEABLE
Adapter,test
Fluke Electronics Corp
4330-00-369-3603AC365 INTERCHANGEABLE
Rod,cleaning
Alfa Laval Inc
4820-00-373-7772D32-211 INTERCHANGEABLE
Valve,plug
Hydro-Aire Aerospace Corp
5935-00-629-812032-21 INTERCHANGEABLE
Connector,plug,electrical
Te Connectivity Corporation Dba Microdot Products
2940-00-633-491151518 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5935-00-689-66773221 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
6515-01-059-44603221 INTERCHANGEABLE
Stockings,anti-Embolism
Covidien Sales Llc Dba Covidien Sales
Cross-Reference Index
Part NumberManufacturer
D3221-1 PRIMARY Lockheed Martin Corporation Div Rms (USA)
D3221-1 Gyro Systems Co Inc (USA)
3221 Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA)
3221 PRIMARY Lockheed Martin Corporation Div Rms (USA)
D3221-1 Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA)
Related Parts
3030-00-067-9698INTERCHANGEABLE
BELT,POSITIVE DRIVE
187L100
3110-00-144-8953INTERCHANGEABLE
BEARING,BALL,ANNULAR
6145-00-171-0821INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
6625-00-230-6388INTERCHANGEABLE
ADAPTER,TEST
3221
4330-00-369-3603INTERCHANGEABLE
ROD,CLEANING
AC365
4820-00-373-7772INTERCHANGEABLE
VALVE,PLUG
D32-211
5935-00-629-8120INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
32-21
2940-00-633-4911INTERCHANGEABLE
FILTER ELEMENT,FLUID
51518
5935-00-689-6677INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3221
6515-01-059-4460INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
3221
4320-01-218-2731INTERCHANGEABLE
VALVE PLATE,HYDRAULIC MOTOR-PUMP
3221
5915-01-369-0712INTERCHANGEABLE
FILTER,HIGH PASS
3221-1

Frequently Asked Questions

What is NSN 6605-00-688-9984?

NSN 6605-00-688-9984 is a Control,underwater Log, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6605 (No Item Name Available). Status: active.

What are the part numbers for NSN 6605-00-688-9984?

NSN 6605-00-688-9984 has 5 cross-referenced part numbers: D3221-1 (Lockheed Martin Corporation Div Rms), D3221-1 (Gyro Systems Co Inc), 3221 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems), 3221 (Lockheed Martin Corporation Div Rms), D3221-1 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems).

What NSN replaces 6605-00-688-9984?

There are 12 known substitutes for 6605-00-688-9984: 3030-00-067-9698, 3110-00-144-8953, 6145-00-171-0821 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com