127B-A4-12

127BA412 Lock Washer
Home » Catalog » Nuts & Washers (p. 396) » Lock Washers (p. 1) » Part Number 127B-A4-12

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Datasheet. 127B-A4-12 specification

Hole Diameter
The length of a straight line which passes through the center of a hole,and terminates at the circumference.

12.2 mm

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

21.1 mm

Material Thickness
A measurement of the smallest dimension of the material,in distinction from length or width.

2.5 mm

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

7386293 (53711) engine assy

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

(inavy) washer

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 316

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

split HELICAL-Right hand

Answers.

What is the style?

Split helical-right hand

What material is the lock washer made of ?

Steel comp 316

What is the thickness?

2.5 millimeters

What is the outside diameter?

21.1 millimeters

What is the inside hole diameter?

12.2 millimeters

What is the NSN for 127B-A4-12?

5310-01-560-0269

How is this classified for shipping?

Schedule B number: 7318210000
nmfc 194160
Spring washers and other lock washers, iron or steel

What's the federal classification of 127B-A4-12?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-01-560-0269 WASHER,LOCK

Used on 7386293(53711) engine assy. split helical-right hand (navy) washer 2.5mm material thickness 21.1mm outside diameter 12.2mm hole diameter

NIIN
015600269
NIIN Date
01/14/08
Schedule B
7318210000 
Name Code
14218
FIIG
A022B0
QUP
 
Historical Price
$0.73 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. 127B-A4M12 Cage 15526

Major End Users Countries and entities

  • - Department of The Navy 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
50.0 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
194160 WASHER OR GASKETS, IRON OR STEEL, 
UFC (universal freight code)
55210 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

127B-A4-12 / Washer,lockWhat is the formal definition of this item?

A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces