Model: 239-3957

O-ring

Properties:

Cross-sectional Height
Between 0.135 inches and 0.143 inches
Center Hole Diameter
Between 3.581 inches and 3.637 inches
Criticality Code Justification
Zzzy
Material
Rubber ethylene-propylene class epm
Test Data Document
81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Reference Number Differentiating Characteristics
As differentiated by material which must conform to ships parts control center special quality control provisions
NSN
5331-01-314-4938
Part Number
239-3957
Description
O-ring
CAGE

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.

Part 239-3957 NSN 5331-01-314-4938

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
47946
FIIG:
A510X0
Concept No.:
App. Key:
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
32
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
596
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 4016930000
  • SITC: 62999
  • End Use: Industrial rubber products
  • NAICS: 339991
  • USDA: 1

Freight Class: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber

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