PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS91531-1N2BKnob

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5355-00-823-9734 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-823-9734 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-823-9734. Primary manufacturer part number: MS91531-1N2B.
Features
  • Knob — FSC 5355
  • Overall Thickness: 0.500 INCHES NOMINAL IN
  • Attachment Method: SETSCREWS
  • Material Transparency: OPAQUE
  • Screw Drive Type: HEXAGON SOCKET
  • Color: BLACK
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
  • Thread Quantity Per Inch: 32 SCREW HOLE
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-823-9734, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5355-00-823-9734
Primary Part NumberMS91531-1N2B
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Overall Thickness0.500 INCHES NOMINAL IN
Attachment MethodSETSCREWS
Material TransparencyOPAQUE
Screw Drive TypeHEXAGON SOCKET
ColorBLACK
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Thread Quantity Per Inch32 SCREW HOLE
Skirt Outside Diameter0.359 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Nominal Thread Size0.164 INCHES SCREW HOLE IN
Outside Diameter0.750 INCHES NOMINAL IN
Skirt StyleRING
Shank StyleSTRAIGHT
Setscrew Hole Quantity2
Distance From Hole Center to Knob/skirt Base0.156 INCHES NOMINAL IN
Gripping Surface ConditionGRIP AID
Shank Diameter0.609 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Shaft Accommodation StyleROUND
Style DesignatorROUND
Skirt DesignNONDETACHABLE
Inside Diameter0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN
Shank Length0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5355-00-065-5064MS91531-1F1B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-160-6099MS91531-3F2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-226-4244MS91531-4N2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-284-5186MS91531-2F2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-284-5197MS91531-3P2G INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-519-7702 INTERCHANGEABLE
Knob
5355-00-543-7183MS91531-2N2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-614-0400MS91531-3N2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-619-9583MS91531-2P2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5355-00-721-8084MS91531-4B2B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS91531-1N2B PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS91531-1N2B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM91531 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5355-00-065-5064INTERCHANGEABLE
KNOB
MS91531-1F1B
5355-00-160-6099INTERCHANGEABLE
KNOB
MS91531-3F2B
5355-00-226-4244INTERCHANGEABLE
KNOB
MS91531-4N2B
5355-00-284-5186INTERCHANGEABLE
KNOB
MS91531-2F2B
5355-00-284-5197INTERCHANGEABLE
KNOB
MS91531-3P2G
5355-00-519-7702INTERCHANGEABLE
KNOB
5355-00-543-7183INTERCHANGEABLE
KNOB
MS91531-2N2B
5355-00-614-0400INTERCHANGEABLE
KNOB
MS91531-3N2B
5355-00-619-9583INTERCHANGEABLE
KNOB
MS91531-2P2B
5355-00-721-8084INTERCHANGEABLE
KNOB
MS91531-4B2B
5355-00-900-8664INTERCHANGEABLE
KNOB
MS91531-1N1B
5355-00-932-5711INTERCHANGEABLE
KNOB
MS91531-2N2G

Frequently Asked Questions

What is NSN 5355-00-823-9734?

NSN 5355-00-823-9734 is a Knob, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-00-823-9734?

NSN 5355-00-823-9734 has 3 cross-referenced part numbers: MS91531-1N2B (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS91531-1N2B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM91531 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5355-00-823-9734?

There are 12 known substitutes for 5355-00-823-9734: 5355-00-065-5064, 5355-00-160-6099, 5355-00-226-4244 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS91531-1N2B?

Key specifications for MS91531-1N2B: Overall Depth: 0.375 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Overall Thickness: 0.500 INCHES NOMINAL IN; Attachment Method: SETSCREWS; Material Transparency: OPAQUE. 22 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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