Model: TBF28-21PS4

Connector Adapter

Properties:

Thread Class
2a
Thread Direction
Right-hand
Body Style
Straight shape w/flange
Overall Length
2.020 inches
Overall Height
Between 1.969 inches and 2.031 inches
Overall Width
Between 1.969 inches and 2.031 inches
Environmental Protection
Pressure proof
Unthreaded Mounting Hole Diameter
Between 0.142 inches and 0.157 inches
Center To Center Distance Between Mounting Facilities Parallel To Height
Between 1.557 inches and 1.567 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 1.557 inches and 1.567 inches
Distance From Mounting Shoulder To Front Face
Between 0.812 inches and 0.843 inches
Threaded Device Type
Coupling facility
Mating End Quantity
2
Contact Position Arrangement Style
28-21 all mating ends
Contact Removability
Nonremovable all mating ends single contact grouping
Contact Maximum Current Rating In Amps
22.0 all mating ends single contact grouping
Contact Maximum Ac Voltage Rating In Volts
500.0 all mating ends single contact grouping
Contact Maximum Dc Voltage Rating In Volts
700.0 all mating ends single contact grouping
Polarization Method
Keyway or multiple keyway
Insert Position In Deg
250.0
Shell Type
Solid
Connector Locking Method
Externally threaded shell
Thread Size
1.750 inches
Contact Material
Copper alloy all mating ends single contact grouping
Contact Surface Treatment
Silver all mating ends single contact grouping
Insert Material
Plastic all mating ends
Shell Material
Aluminum alloy
Included Contact Quantity
37 all mating ends single contact grouping
Precious Material And Location
Contact surfaces silver
Precious Material And Weight
0.074 gold grains, troy
Precious Material
Silver
Thread Series Designator
Unef
NSN
5935-00-557-2064
Part Number
TBF28-21PS4
Description
Adapter,connector
CAGE
71468

An adapter with electrical contacts which provides facilities for joining two or more electrical connectors, whose design or function will not normally warrant their junction. it is not designed for permanent attachment to a cable, cord, coaxial line, or wire. the physical shape of an electrical connector should not be the determining factor of its name. tee, angle, straight, and y-shaped adapters are all adapter, connector. excludes adapter, connector to lampbase; adapter, lampholder to connector; adapter (1), cable clamp to connector; and adapter, lampholder. for items designed as a mechanical connection between an electrical conduit and an electrical connector, see adapter (1), electrical conduit.

Part TBF28-21PS4 NSN 5935-00-557-2064

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15091
FIIG:
A039B0
Concept No.:
2
App. Key:
A
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:
P
PMIC:
C
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061680
UFC:
34570
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8548900100
  • SITC: 77813
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical parts of machinery or apparatus not specified or included elsewhere in chapter 85

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