D91B4MA

Knob

This page provides complete and verified information for part number D91B4MA, NSN 5355-00-644-2269

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.

D91B4MA
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5355 Knobs and Pointers
National Stock Number
5355-00-644-2269
Item Name Code
03263
Assigment Date
01/01/1963 (63 years ago)

0.252 inches minimum and 0.254 inches maximum inside diameter, 0.484 inches maximum distance from hole center to knob/skirt base, 2 setscrew hole quantity, 0.320 inches minimum counterbore depth, 0.640 inches minimum counterbore diameter

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
0.640 inches minimum
Counterbore Depth
0.320 inches minimum
Setscrew Hole Quantity
2
Distance From Hole Center To Knob/Skirt Base
0.484 inches maximum
Overall Depth
0.730 inches minimum
Gripping Surface Condition
grip aid
Shaft Accommodation Style
counterbored
Outside Diameter
0.890 inches minimum and 0.930 inches maximum
Skirt Style
stepped
Attachment Method
setscrews
Overall Thickness
1.325 inches minimum and 1.425 inches maximum
Material Transparency
opaque
Screw Drive Type
hexagon socket
Thread Quantity Per Inch
32 screw hole
Nominal Thread Size
0.164 inches screw hole
Skirt Outside Diameter
0.845 inches maximum
Skirt Design
nondetachable
Special Features
tactile form-gain,0.610 in. min dia,0.650 in. max dia,0.365 in. min thickness,0.415 in. max thickness
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
4 - Partial descriptive item identification (type 1 concept)
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
XX
National Motor Freight Classification Item Number
146230
National Motor Freight Classification Sub-Item Number
X
Uniform Freight Classification Item Number
73040
National Motor Freight Class Rating
G - 125.0
Water Commodity
576 - Metal and metal products, nos, (less than 35 feet)
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
BZ -
National Motor Freight Description
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 D91B4MA

What is the FSCG of the NSN 5355-00-644-2269?
The FSCG of the NSN 5355-00-644-2269 is 5355
Does the NSN 5355-00-644-2269 have a Schedule B code assigned?
Yes, the Schedule B code is 8531900002
Does NSN 5355-00-644-2269 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 5355-00-644-2269 contain precious materials?
Precious metal content is unknown
Does NSN 5355-00-644-2269 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 5355-00-644-2269 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

Need Consumables?

Running low on essential supplies? Explore our extensive catalog of high-quality consumables designed to keep your operations on track.

Electrical Wires

Recommended for You

Discover a selection of other high-demand NSN components from our catalog. These featured parts are frequently sourced by procurement teams across defense, aerospace, and industrial sectors.

Price & Availability

Fill out the form to get accurate pricing, lead time, and stock details from our NSN specialists:

FREE

Aviation Suppliers Association Member AS9120-ISO9001 Certification

Popular Parts

Browse our top-performing parts, selected based on customer demand and procurement frequency. All listings include up-to-date specs, availability, and condition:

8765682
1015-00-769-9846
Muzzle Plug
87656866
5340-01-566-6990
Manual Control Lever
87656868
5340-01-567-1173
Manual Control Lever
8765688
1030-00-859-4511
Artillery Cleaning Staff Section
8765689
4933-00-788-6113
Breechblock Holding Tool
8765691
1025-00-593-8676
Retainer Assembly
8765699
1025-00-649-9835
Cannon Firing Mechanism
87657
5306-01-296-9832
Machine Bolt
876570
2990-00-358-4680
Flyball Governor
8765700
1025-00-678-0526
Firing Pin Ca Slide
8765701
5360-00-680-3819
Compression Helical Spring
8765706
3040-00-678-0528
Shouldered Shaft
8765708
1025-00-673-9236
Block Assy Block
876571
2805-01-054-9725
Governor Shaft and
8765710
5315-00-678-0529
Headless Straight Pin