51A1-25MC

Knob

This page provides complete and verified information for part number 51A1-25MC, NSN 5355-00-528-5143

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.

51A1-25MC
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5355 Knobs and Pointers
National Stock Number
5355-00-528-5143
Item Name Code
03263
Assigment Date
09/01/1974 (51 years ago)

0.158 inches nominal distance from hole center to knob/skirt base, 0.405 inches nominal overall depth, 2 setscrew hole quantity, grip aid gripping surface condition, 0.078 inches nominal inside diameter

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Inside Diameter
0.078 inches nominal
Setscrew Hole Quantity
2
Distance From Hole Center To Knob/Skirt Base
0.158 inches nominal
Overall Depth
0.405 inches nominal
Gripping Surface Condition
grip aid
Shaft Accommodation Style
round
Outside Diameter
0.490 inches minimum and 0.530 inches maximum
Attachment Method
setscrews
Overall Thickness
0.480 inches minimum and 0.540 inches maximum
Screw Drive Type
hexagon socket
Thread Quantity Per Inch
40 screw hole
Nominal Thread Size
0.112 inches screw hole
Color
gray/grey
Material
plastic
Style Designator
round
Thread Series Designator
unc screw hole

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
K - Full descriptive - reference item identification
Demilitarization
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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A530M0
Precious Metals Indicator
U - Precious metal content is unknown
Pseudo Item Name Code
0003263
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
8531900002

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
GX

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 51A1-25MC

What is the FSCG of the NSN 5355-00-528-5143?
The FSCG of the NSN 5355-00-528-5143 is 5355
Does the NSN 5355-00-528-5143 have a Schedule B code assigned?
Yes, the Schedule B code is 8531900002
Does NSN 5355-00-528-5143 require demilitarization?
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.
Does NSN 5355-00-528-5143 contain precious materials?
Precious metal content is unknown
Does NSN 5355-00-528-5143 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5355-00-528-5143 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Sun, Sep 1, 1974

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