PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-21-75-3Knob

Power Dynamics Inc · NSN 5355-01-370-8527 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-01-370-8527 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-370-8527. Primary manufacturer part number: 66-21-75-3.
Features
  • Knob — FSC 5355
  • 2 verified cross-references
  • Primary manufacturer: Power Dynamics Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-01-370-8527, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Power Dynamics Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameKnob
FSC / FSG5355 — No Item Name Available (FSG 53)
ManufacturersAnritsu Instruments Company Div Mbu (CAGE 51275); Power Dynamics Inc (CAGE 60046)
Technical Specifications
ParameterValue
NSN5355-01-370-8527
Primary Part Number66-21-75-3
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerPower Dynamics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6145-00-335-13364016206-0701 INTERCHANGEABLE
Braid,wire
Raytheon Company Dba Raytheon Co
4310-00-860-0663200122K PIECE NUMBER 151 INTERCHANGEABLE
Ring,piston
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
3030-01-037-8351 INTERCHANGEABLE
Belt,v
3040-01-198-29381570 INTERCHANGEABLE
Guide,piston
Lawler Manufacturing Company, Inc.
4820-01-235-8544 INTERCHANGEABLE
Seat,valve
4460-01-267-8979 INTERCHANGEABLE
Filter,air,electrostatic
4610-01-388-3439 INTERCHANGEABLE
Detector,ion
5940-01-564-54183420-005N INTERCHANGEABLE
Terminal,lug
Texas Instruments Inc
1375-01-715-941315570 INTERCHANGEABLE
Demolition Kit,breaching System,
Blasters Tool & Supply Co., Inc.
Cross-Reference Index
Part NumberManufacturer
15570 Anritsu Instruments Company Div Mbu (USA)
66-21-75-3 PRIMARY Power Dynamics Inc (USA)
Related Parts
6145-00-335-1336INTERCHANGEABLE
BRAID,WIRE
4016206-0701
4310-00-860-0663INTERCHANGEABLE
RING,PISTON
200122K PIECE NUMBER 151
3030-01-037-8351INTERCHANGEABLE
BELT,V
3040-01-198-2938INTERCHANGEABLE
GUIDE,PISTON
1570
4820-01-235-8544INTERCHANGEABLE
SEAT,VALVE
4460-01-267-8979INTERCHANGEABLE
FILTER,AIR,ELECTROSTATIC
4610-01-388-3439INTERCHANGEABLE
DETECTOR,ION
5940-01-564-5418INTERCHANGEABLE
TERMINAL,LUG
3420-005N
1375-01-715-9413INTERCHANGEABLE
DEMOLITION KIT,BREACHING SYSTEM,
15570

Frequently Asked Questions

What is NSN 5355-01-370-8527?

NSN 5355-01-370-8527 is a Knob, manufactured by Power Dynamics Inc, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-01-370-8527?

NSN 5355-01-370-8527 has 2 cross-referenced part numbers: 15570 (Anritsu Instruments Company Div Mbu), 66-21-75-3 (Power Dynamics Inc).

What NSN replaces 5355-01-370-8527?

There are 9 known substitutes for 5355-01-370-8527: 6145-00-335-1336, 4310-00-860-0663, 3030-01-037-8351 and 6 more. Verify interchangeability with system specifications before substitution.

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