PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1-81Knob

Southco Inc · NSN 5355-01-640-7060 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-01-640-7060 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-640-7060. Primary manufacturer part number: M1-81.
Features
  • Knob — FSC 5355
  • Color: BLACK
  • Outside Diameter: 60.0 MILLIMETERS NOMINAL MM
  • 1 verified cross-reference
  • Primary manufacturer: Southco Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-01-640-7060, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Southco Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5355-01-640-7060
Primary Part NumberM1-81
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusACTIVE
ColorBLACK
Outside Diameter60.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-156-4875160229 INTERCHANGEABLE
Bearing,ball,annular
Peerless Pump a Tbg Inc Co
3110-00-156-48803B5530 INTERCHANGEABLE
Bearing,ball,annular
Dana Off Highway Products, Llc
4730-00-278-4357SAE J512 4-2 060102BA INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
5340-00-297-2406 INTERCHANGEABLE
Cap,protective,dust and Moisture
3455-01-032-2898 INTERCHANGEABLE
File,rotary
Cross-Reference Index
Part NumberManufacturer
M1-81 PRIMARY Southco Inc (USA)
Related Parts
3110-00-156-4875INTERCHANGEABLE
BEARING,BALL,ANNULAR
160229
3110-00-156-4880INTERCHANGEABLE
BEARING,BALL,ANNULAR
3B5530
4730-00-278-4357INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 4-2 060102BA
5340-00-297-2406INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
3455-01-032-2898INTERCHANGEABLE
FILE,ROTARY

Frequently Asked Questions

What is NSN 5355-01-640-7060?

NSN 5355-01-640-7060 is a Knob, manufactured by Southco Inc, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-01-640-7060?

NSN 5355-01-640-7060 has 1 cross-referenced part number: M1-81 (Southco Inc).

What NSN replaces 5355-01-640-7060?

There are 5 known substitutes for 5355-01-640-7060: 3110-00-156-4875, 3110-00-156-4880, 4730-00-278-4357 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M1-81?

Key specifications for M1-81: Special Features: DOOR THICKNESS RANGE 1 TO 7 MM;LATCH AND MOUNTING CUP MATERIAL ACETAL;MAX STATIC LOAD 135N(30LBS);AVG ULTIMATE LOAD 175N(39LBS);OPERATING TEMPERATURE RANGE -40 TO 80 C LBS; Color: BLACK; Outside Diameter: 60.0 MILLIMETERS NOMINAL MM. 3 total characteristics are documented in the Federal Logistics Information System.

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