PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33-446Knob

Automatic Switch Company Dba Asco · NSN 5355-00-939-6439 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-939-6439 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-939-6439. Primary manufacturer part number: 33-446.
Features
  • Knob — FSC 5355
  • 5 verified cross-references
  • Primary manufacturer: Automatic Switch Company Dba Asco
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-939-6439, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Automatic Switch Company Dba Asco. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-00-939-6439
Primary Part Number33-446
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerAutomatic Switch Company Dba Asco
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-138-662533446 INTERCHANGEABLE
Nut,sleeve
Moog Inc
3455-00-187-2578 INTERCHANGEABLE
File,rotary
5355-00-249-7761 INTERCHANGEABLE
Knob
2520-00-428-097333446 INTERCHANGEABLE
Clutch Assembly,friction
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
4730-00-843-880813W-3/4IN INTERCHANGEABLE
Trap,air
Spirax Sarco Inc Dba Spirax Sarco
3120-01-068-7492902629-1 INTERCHANGEABLE
Bushing,sleeve
Lockheed Martin Corp
2530-01-203-101433446 INTERCHANGEABLE
Disk,rotating
Jay-Em Aerospace Corporation
5950-01-243-332233446 INTERCHANGEABLE
Reactor
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5365-01-483-765633446 INTERCHANGEABLE
Bushing,nonmetallic
Alliance Laundry Systems Llc
Cross-Reference Index
Part NumberManufacturer
33-446 PRIMARY Automatic Switch Company Dba Asco (USA)
740-95-1 Automatic Switch Company Dba Asco (USA)
33-446 Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated (USA)
033446 Zf Industrieantriebe Witten Gmbh (DEU)
74095-1 Automatic Switch Company Dba Asco (USA)
Related Parts
5310-00-138-6625INTERCHANGEABLE
NUT,SLEEVE
33446
3455-00-187-2578INTERCHANGEABLE
FILE,ROTARY
5355-00-249-7761INTERCHANGEABLE
KNOB
2520-00-428-0973INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
33446
4730-00-843-8808INTERCHANGEABLE
TRAP,AIR
13W-3/4IN
3120-01-068-7492INTERCHANGEABLE
BUSHING,SLEEVE
902629-1
2530-01-203-1014INTERCHANGEABLE
DISK,ROTATING
33446
5950-01-243-3322INTERCHANGEABLE
REACTOR
33446
5365-01-483-7656INTERCHANGEABLE
BUSHING,NONMETALLIC
33446

Frequently Asked Questions

What is NSN 5355-00-939-6439?

NSN 5355-00-939-6439 is a Knob, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-00-939-6439?

NSN 5355-00-939-6439 has 5 cross-referenced part numbers: 33-446 (Automatic Switch Company Dba Asco), 740-95-1 (Automatic Switch Company Dba Asco), 33-446 (Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated), 033446 (Zf Industrieantriebe Witten Gmbh), 74095-1 (Automatic Switch Company Dba Asco).

What NSN replaces 5355-00-939-6439?

There are 9 known substitutes for 5355-00-939-6439: 5310-00-138-6625, 3455-00-187-2578, 5355-00-249-7761 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33-446?

Key specifications for 33-446: End Item Identification: USED ON ENGINE GENERATOR. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-00-939-6439 still in active supply?

NSN 5355-00-939-6439 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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