Model: 2-121 N304-75

O-ring

Properties:

Outside Diameter
Between 1.239 inches and 1.271 inches
Cross-sectional Height
Between 0.100 inches and 0.106 inches
Center Hole Diameter
Between 1.043 inches and 1.055 inches
End Application
Aircraft, sof ( ac-130h, mc-130h, ec-130e, hc-130); elevators, aircraft; trainer, b-1b aircraft; aircraft, galaxy c-5; guided missile launching system, mk 26 (gmls); gun, 5-in./54 cal, mk-42 & 45; l.P. Compressors; fire pumps; gun mount, mk 75 (gm); stream (std. Tensioned replenishment at sea method)
Material
Rubber butadiene-acrylonitrile class nbr
NSN
5331-00-542-1398
Part Number
2-121 N304-75
Description
O-ring
CAGE
C0308

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 2-121 N304-75 NSN 5331-00-542-1398

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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