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Machine Screw

Model NAS1221R3E13

Quick Information about NAS1221R3E13

3a thread class, right-hand , 0.338 inches thread length, 1.136 inches fastener length, flat countersunk head style, 0.344 inches head diameter

For pricing and availability of this machine screw submit the price quote form on the right.

Product Details

  • NSN:
    5305-01-592-8981 (5305015928981)
  • Thread Direction:
    Right-hand
  • Thread Length:
    0.338 inches
  • Fastener Length:
    Between 1.136 inches and 1.166 inches
  • Head Style:
    Flat countersunk
  • Head Diameter:
    Between 0.344 inches and 0.385 inches
  • Internal Style:
    Torque-set ribbed
  • End Application:
    Guidance section harpoon 3779as1102-1
  • Thread Diameter:
    0.190 inches
  • Thready (tpi):
    32
  • Min. (psi):
    160000 pounds per square inch
  • Countersink Angle:
    Between 99.0 degrees and 101.0 degrees
  • Part Agency:
    Bolt 100 degrees flush head
  • Screw Material:
    Iron alloy 660
  • Screw Treatment:
    Passivate
  • Schedule B Code:
    7318152000

Classification

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

Definition Machine Screw

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
Cond. Code:
1
Status:
A

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

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