51DDMA
Knob
This page provides complete and verified information for part number 51DDMA, NSN 5355-01-177-9797
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 intended to be mounted on or associated with a rotating shaft or similar device to determine relative position or definite dial and/or scale readings. Positioning may be indicated by the shape of the item or by a reference line thereon. Excludes:cursor, indicator and knob.
0.568 inches minimum overall depth, 0.252 inches minimum and 0.254 inches maximum inside diameter, grip aid gripping surface condition, 2 setscrew hole quantity, 0.325 inches maximum distance from hole center to knob/skirt base
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
- Setscrew Hole Quantity
- 2
- Distance From Hole Center To Knob/Skirt Base
- 0.325 inches maximum
- Overall Depth
- 0.568 inches minimum
- Gripping Surface Condition
- grip aid
- Shaft Accommodation Style
- flatted one side
- Outside Diameter
- 0.490 inches minimum and 0.530 inches maximum
- Skirt Style
- flared
- Attachment Method
- setscrews
- Inside Width
- 0.222 inches minimum and 0.227 inches maximum
- 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
- Skirt Outside Diameter
- 1.150 inches maximum
- Skirt Design
- nondetachable
- Special Features
- shaft accommodation hole counterbored 0.485 in. min dia and 0.188 in. min depth
- Color
- black
- 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
- Automatic Data Processing Point
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 4 - Partial descriptive item identification (type 1 concept)
- 0 - Represents items with no adp components
- 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 51DDMA
What is the FSCG of the NSN 5355-01-177-9797?
Does the NSN 5355-01-177-9797 have a Schedule B code assigned?
Does NSN 5355-01-177-9797 require demilitarization?
Does NSN 5355-01-177-9797 contain precious materials?
Does NSN 5355-01-177-9797 contain hazardous materials?
When the NSN 5355-01-177-9797 was assigned to the Federal Catalog?
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