Model: 121631

Externally Relieved Body Screw

Special Features:

Color black no. 37038 per federal std-595

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.200 inches
Fastener Length
Between 0.470 inches and 0.500 inches
Head Style
Fillister
Head Diameter
Between 0.255 inches and 0.270 inches
Head Height
0.075 inches
First Diameter From Head
Between 0.095 inches and 0.100 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.270 inches and 0.300 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Material Specification
66 federal standard all material responses
Surface Treatment
Paint head and chromate zinc head
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Surface Treatment Specification
Tt-e-527 federal specification 1st treatment response head and mil-p-8585 military specification 2nd treatment response head
Thread Series Designator
Unc
NSN
5305-01-067-6999
Part Number
121631
Description
Screw,externally Relieved Body
CAGE
10138

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part 121631 NSN 5305-01-067-6999

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
Concept No.:
App. Key:
SE
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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