O-Ring

MIL-R-25988/1

MIL-R-25988/1
(NSN) National Stock Number
5331-00-279-9351
Federal Supply Classification
5331 O-Ring
Item Name Code
47946
Schedule B Code
4016930000
Summary

4.012 inches nominal outside diameter, 0.135 inches minimum and 0.143 inches maximum cross-sectional height, 3.706 inches minimum and 3.762 inches maximum center hole diameter, 125 maximum elongation percentage, 70.0 shore durometer a nominal hardness rating, rubber fluorosilicone class fq material

DAC HCC DMIL RNCC
4 - - 5
RNVC SADC MSDS RNAAC
9 - - KZ
Identification

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

INC FIIG Concept Condition
47946 A510X0 - 1
Specifications
Outside Diameter
4.012 inches nominal
Details The length of a straight line which passes through the center of an item,and terminates at the outside circumference.
Cross-Sectional Height
0.135 inches minimum and 0.143 inches maximum
Details A measurement from the bottom to the top of a cross section,in distinction from depth.
Center Hole Diameter
3.706 inches minimum and 3.762 inches maximum
Details The length of a straight line which passes through the center of the center hole,and terminates at the circumference.
Elongation Percentage
125 maximum
Details The percentage the item will stretch.
Hardness Rating
70.0 shore durometer a nominal
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Material
rubber fluorosilicone class fq
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
M25988/1-240 1K697 5 - 5 2 - 9Z
M25988/1-240 81349 4 - 2 2 - KZ
MIL-DTL-25988/1 81349 E - 4 1 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
95100 - W -
RVC WCC TCC SHC
- 596 Z 9

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Manufacturer
MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
CAGE: 81349
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FAQs
Frequently asked questions for NSN 5331-00-279-9351
What is the NIIN of the NSN 5331-00-279-9351?
The National Item Identification Number (NIIN) of the NSN 5331-00-279-9351 is 00-279-9351
When the NSN 5331-00-279-9351 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Wed, Aug 22, 1973
Does the NSN 5331-00-279-9351 contain any precious metals?
Does not contain precious metal
Does the NSN 5331-00-279-9351 contain any hazardous material?
No data in HMIRS

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