A505A

Engine Accessory Generator

This page provides complete and verified information for part number A505A, NSN 2920-00-439-2872

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.

A505A
Federal Supply Group
Engine Accessories
National Stock Number
2920-00-439-2872
Item Name Code
17311
Assigment Date
11/28/1969 (56 years ago)

radio interference shielding furnished items, 0.780 inches nominal second step diameter, right-hand thread direction, 0.186 inches minimum and 0.188 inches maximum keyway width, 0.828 inches nominal thread length

Characteristics

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

Thread Direction
right-hand
Thread Length
0.828 inches nominal
Furnished Items
radio interference shielding
Second Step Diameter
0.780 inches nominal
Keyway Width
0.186 inches minimum and 0.188 inches maximum
Unthreaded Portion Length
1.297 inches nominal
Mounting Hole Thread Direction
right-hand
Mounting Style
bracket mtd w/three mtg holes, top hole threaded
Environmental Protection
corrosion resistant and fungus resistant
Submersibility
submersible
Maximum Operating Altitude Rating
10000.0 feet
Shaft Rotation Direction
clockwise
Distance From End To Keyway Center
1.062 inches nominal
Thread Diameter
0.750 inches nominal
Ground Polarity Type
negative
Maximum Output Current Rating In Amps
230.0
Grounding Method
internal
Shaft Drive End Style
straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center
4.688 inches nominal
Distance Between Shaft Center And Top Mounting Hole Center
4.375 inches minimum and 4.875 inches maximum
Angular Deviation Of First Hole From Top Center In Deg
170.0
Angular Deviation Of Second Hole From First Hole In Deg
190.0
Distance Between Inside Surfaces Of Hinge Bracket
6.125 inches nominal
Distance Between Outside Surfaces Of Hinge Bracket
7.125 inches nominal
Bottom Mounting Hole Diameter
0.441 inches minimum and 0.461 inches maximum
Maximum Rated Armature Speed In Rpm
3000
Thread Series
unf
Thread Class
2a
Mounting Hole Thread Series Designator
unc
Mounting Hole Thread Diameter
0.375 inches nominal
Mounting Hole Thread Quantity Per Inch
16
Mounting Hole Thread Class
2b
Thread Quantity Per Inch
16
Voltage In Volts
28.0

Classification Data

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

Type of Item Identification
M - Partial descriptive - reference item identification (type 1a concept)
Automatic Data Processing Point
0 - Represents items with no adp components
Source of Supply
MPB - Commanding general marine corps logistics base g647-1, bldg. 3700 albany, georgia 31704-5000
Demilitarization
D - Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
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
A14700
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0017311
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
8511500000

Freight Information

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

Major Organizational Entity
PA

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for A505A

What is the FSCG of the NSN 2920-00-439-2872?
The FSCG of the NSN 2920-00-439-2872 is 2920
Does the NSN 2920-00-439-2872 have a Schedule B code assigned?
Yes, the Schedule B code is 8511500000
Does NSN 2920-00-439-2872 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 2920-00-439-2872 contain precious materials?
Item does not contain precious metal.
Does NSN 2920-00-439-2872 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 2920-00-439-2872 was assigned to the Federal Catalog?
It was assigned 56 years ago, on Fri, Nov 28, 1969

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