Model: 51B581-2-1

Close Tolerance Screw

Properties:

Thread Class
3a
Thread Length
0.260 inches
Fastener Length
Between 0.322 inches and 0.369 inches
Head Style
Flat countersunk
Head Diameter
Between 0.256 inches and 0.261 inches
Grip Diameter
Between 0.1625 inches and 0.1635 inches
Grip Length
Between 0.052 inches and 0.072 inches
Countersink Angle
100.0 degrees
NSN
5305-01-050-2124
Part Number
51B581-2-1
Description
Screw,close Tolerance
CAGE

Part 51B581-2-1 NSN 5305-01-050-2124

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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