S521

Assembled Washer Screw

NSN 5305-00-207-9256

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
100 EA
NIIN:
002079256

Product Technical Spec.

Thread Class:
2a
Thread Direction:
Right-hand
Thread Length:
Between 0.543 inches and 0.605 inches
Fastener Length:
0.625 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:
Cross recess type 1
Thread Diameter:
0.164 inches
Thready Qty Per Inch (tpi):
32
Hardness Rating:
40.0 rockwell c primary washer and 50.0 rockwell c primary washer
Primary Washer Outside Diameter:
Between 0.327 inches and 0.338 inches
Primary Washer Style:
Flat internal teeth
Primary Washer Material Thickness:
0.020 inches
Material:
Steel
Surface Treatment:
Cadmium or zinc
Surface Treatment Specification:
Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
Thread Series Designator:
Unc
NSN:
5305-00-207-9256
Item Name:
Round Head Cross Recess Machine Screw And External Tooth Lock Washer Assemblies
Cage Code:
80212

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
S521
Cage Code:
076M6
RNCC:
5
RNVC:
2
RNAAC:
ZZ
Status:
A
MSDS:
SADC:

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06660
FIIG:
A003B0
Concept No.:
App. Key:
SA
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:
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:
--
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:
E
LVL_B:
Q

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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Pricing & Availability

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Definition Definition of approved item name (AIN): "Round Head Cross Recess Machine Screw And External Tooth Lock Washer Assemblies"

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

MOE Major Organizational Entities

Entity
DSOR
User:
DEPARTMENT OF THE AIR FORCE Dept. of the Air Force
DSOR:
User:
FRANCE France
DSOR:
User:
DENMARK Denmark
DSOR:
User:
GREECE Greece
DSOR:
User:
TURKEY Turkey
DSOR:
Import / Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

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


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