51B4MC
Knob
This page provides complete and verified information for part number 51B4MC, NSN 5355-01-133-3957
You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.
An item designed to transmit manual, rotary or linear motion to other devices. May include detachable or nondetachable stud (shaft), pointer, or skirt. It may have reference markings in the form of dots, arrows, hairlines, and/or symbols which may be used in conjunction with a calibrated panel, vernier indicator, and the like to indicate the position or motion of items. For items having spokes or simulated spokes radiating from near the center to near the outside rim of the item and relatively thin round disk-shaped items 3 inches (76.2 mm) in diameter or over, see handwheel. For items calibrated in units or series of divisions to denote relative positioning of devices see dial, control. Excludes:doorknob; and handle (as modified).
2 setscrew hole quantity, 0.300 inches minimum counterbore diameter, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.325 inches maximum distance from hole center to knob/skirt base, 0.177 inches minimum counterbore depth
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.
- Inside Diameter
- 0.252 inches minimum and 0.254 inches maximum
- Counterbore Diameter
- 0.300 inches minimum
- Counterbore Depth
- 0.177 inches minimum
- Setscrew Hole Quantity
- 2
- Distance From Hole Center To Knob/Skirt Base
- 0.325 inches maximum
- Gripping Surface Condition
- grip aid
- Outside Diameter
- 0.490 inches minimum and 0.530 inches maximum
- Attachment Method
- setscrews
- Overall Thickness
- 0.625 inches minimum and 0.685 inches maximum
- Screw Drive Type
- hexagon socket
- Thread Quantity Per Inch
- 40 screw hole
- Nominal Thread Size
- 0.112 inches screw hole
- Color
- gray, fed std 595, 36231
- Material
- plastic
- Style Designator
- round
- Thread Series Designator
- unc screw hole
- Specification/Standard Data
- 96906-ms91528 government standard
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A530M0
- A - Item does not contain precious metal.
- 0003263
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 8531900002
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- KZ
- 146230
- X
- 73040
- G - 125.0
- 576 - Metal and metal products, nos, (less than 35 feet)
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- BZ -
- guns machine/parts noi sm arms ammo
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 51B4MC
What is the FSCG of the NSN 5355-01-133-3957?
Does the NSN 5355-01-133-3957 have a Schedule B code assigned?
Does NSN 5355-01-133-3957 require demilitarization?
Does NSN 5355-01-133-3957 contain precious materials?
Does NSN 5355-01-133-3957 contain hazardous materials?
When the NSN 5355-01-133-3957 was assigned to the Federal Catalog?
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