Model: MS21937-4HC

Packing Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Thread Length
0.344 inches
Casehardening Indicator
Not casehardened
Overall Length
0.500 inches
Thread Size
7/16in-20
Unthreaded Portion Length
0.156 inches
Largest Inside Diameter
0.875 inches
Screw Thread Series Designator
Unjf
Width Across Flats
1.000 inches
Screw Thread Location
Internal
Length To Shoulder
0.344 inches
Major Unthreaded Outside Diameter
1.000 inches
Material
Aluminum alloy, qq-a-225/4, alloy 2014, t6
Material
Aluminum alloy 2014
Surface Treatment
Anodized, mil-a-8625, type 2, class 1
Style Designator
Hexagon, internal thread, shouldered
Surface Treatment
Anodized, mil-a-8625, type 2, class 1
Test Data Document
81349-mil-f-18280c 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.).
NSN
4730-00-684-0564
Part Number
MS21937-4HC
Description
Packing Nut
CAGE
96906

Part MS21937-4HC NSN 4730-00-684-0564

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18028
FIIG:
T385-E
Concept No.:
App. Key:
EA
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
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:
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:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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