Model: 81A4-28-21P

Electrical Plug Connector

Properties:

Thread Class
2a and 2b
Thread Direction
Right-hand and right-hand
Body Style
Straight shape, internal coupling
Overall Length
1.797 inches
Overall Diameter
2.060 inches
Threaded Device Type
Back shell and coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
28-21 single mating end
Contact Removability
Nonremovable single mating end single contact grouping
Contact Maximum Current Rating In Amps
22.0 single mating end single contact grouping
Contact Maximum Ac Voltage Rating In Volts
500.0 single mating end single contact grouping
Contact Maximum Dc Voltage Rating In Volts
700.0 single mating end single contact grouping
Polarization Method
Key, multiple key groove
Insert Position In Deg
0.0
Shell Type
Solid
Connector Locking Method
Internally threaded coupling nut
Thread Length
0.596 inches and 0.663 inches
Thready Qty Per Inch (tpi)
18 and 10
Thread Size
1.625 inches and 1.750 inches
Terminal Location
Back single mating end single contact grouping
Contact Material
Copper alloy single mating end single contact grouping
Contact Surface Treatment
Silver single mating end single contact grouping
Insert Material
Rubber single mating end
Terminal Type
Solder well single mating end single contact grouping
Shell Material
Aluminum alloy
Shell Surface Treatment
Anodize
Included Contact Quantity
37 single mating end single contact grouping
Included Contact Type
Round pin single mating end single contact grouping
Precious Material And Location
Contact surfaces silver
Precious Material And Weight
0.037 silver grains, troy
Precious Material
Silver
Test Data Document
81349-mil-c-5015 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.).
Thread Series Designator
Uns and double stub
Specification Data
81349-mil-c-5015 government specification
NSN
5935-00-577-2290
Part Number
81A4-28-21P
Description
Connector,plug,electrical
CAGE
38597

An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. Excludes jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. see also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). for items without inserts, see shell, electrical connector.

Part 81A4-28-21P NSN 5935-00-577-2290

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01938
FIIG:
A039B0
Concept No.:
App. Key:
G
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:
S
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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: 8536695050
  • SITC: 77258
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Electrical plugs & sockets, for a voltage not exceeding 1,000 v, nesoi

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