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Retaining Ring NSN 5325-00-156-1631

Item Description

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes ring, connecting, round.

NSN 5325-00-156-1631 NSN: 5325-00-156-1631

Features and Characteristics

Cross Sectional Shape
Rectangular
Casehardening Indicator
Not casehardened
Outside Diameter
Between 4.092 inches and 4.222 inches
Major Thickness
Between 0.106 inches and 0.112 inches
Ring Style
Internal
Usage Design
Internal
Material Hardness Rating
Between 45.0 rockwell c and 52.0 rockwell c
Material
Steel, fed standard 66, composition 1066 through 1090
Material
Steel, fed standard 66, composition 1066 through 1090
Surface Treatment
Phosphate zinc
Surface Treatment
Phosphate, mil-p-16232, type z, class 2
FSC
5325 Fastening Devices
NIIN
001561631
NSN
5325001561631

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS16625-3375
Cage Code:
96906
Status:
A
MSDS:
Part Number:
3000-X375-ST-PA
Cage Code:
97464
Status:
A
MSDS:
Part Number:
N5000-375-S-PP
Cage Code:
79136
Status:
A
MSDS:
Part Number:
N5000-X375-S-PP
Cage Code:
79136
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9606100000
  • NAICS: 339993
  • SITC: 89983
  • Description: Press-fasteners, snap-fasteners & press-studs & parts therefor
  • End Use (Code 12640):
    Finished textile supplies

Q & A

Frequently asked questions for NSN 5325-00-156-1631
What are the manufacturers of nsn 5325001561631?
Does this nsn 5325001561631 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5325001561631
A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. for items having internal prongs which perform the same function, see push on nut. it is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. see also clip, retaining and pin, lock. excludes ring, connecting, round.
Does nsn 5325001561631 contain any precious metals?
Precious metal content is unknown.
Does nsn 5325001561631 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5325001561631?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
07623
FIIG:
T252-G
App. Key:
GA
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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