Model: M25988/1-344

O-ring

Properties:

Outside Diameter

4.270 inches

Cross-sectional Height

Between 0.205 inches and 0.215 inches

Center Hole Diameter

Between 3.822 inches and 3.878 inches

Elongation Percentage

125

Hardness Rating

70.0 shore durometer a

Material

Rubber fluorosilicone class fq

NSN

5331-01-007-1619

Part Number

M25988/1-344

Description

O-ring

CAGE

81349

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 M25988/1-344 NSN 5331-01-007-1619

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

47946

FIIG:

A510X0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

WCC:

596

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 5331-01-007-1619 is a component of

Phantom F-4 Aircraft
Hercules C-130 Aircraft
F-111 (fms Only) Aircraft
Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
Kc-135a) F-108 (cfm-56 Aircraft Engine
Airlifter C-17a Aircraft
E-4b Airborne Command Post Aircraft
B-2 Bomber (atb) Aircraft
Joint Stars Target Radar System
F-117a Aircraft
010573391
Flight Refueling Probe Receptacle Assembly
013881928
Flight Refueling Probe Receptacle Assembly
012931479
Aerial Refueling Receptacle Slipway
007255292
Sediment Strainer
011360460
Flight Refueling Probe Receptacle Assembly

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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