Model: 274944

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.313 inches and 0.375 inches
Fastener Length
0.375 inches
Head Style
Fillister
Head Diameter
Between 0.250 inches and 0.270 inches
Head Height
Between 0.102 inches and 0.113 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Primary Washer Outside Diameter
Between 0.243 inches and 0.257 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.031 inches
Material
Steel
Material Specification
Gm 275-m cagec 16764 mfr ref single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 ty2 cl2 federal specification single treatment response
Thread Series Designator
Unc
NSN
5305-01-244-8867
Part Number
274944
Description
Screw,assembled Washer
CAGE
1LW55

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part 274944 NSN 5305-01-244-8867

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06660
FIIG:
A003B0
Concept No.:
App. Key:
SA
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
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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