5310-01-417-9935

Description: Flat Washer

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We are commited to quality and satisfaction as a certified supplier in the aerospace and military industries.

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MILSPEC: MIL-S-18729

 Export Restrictions

Any part(s) quoted or sold by MilSpec.parts and re-sold (to a third party) CANNOT be sold to a USA embargoed country, company, entity, or person(s). Depending on the ECCN, these commodities may require export license or exception. Diversion contrary to U.S. law is prohibited. Unless otherwise noted, this sale, order or quote may include Munitions List Items (MLI) or Commerce Controlled List Items (CCLI). MLI/CCLI property is controlled by the US Government and in many cases cannot be transferred (exported, sold or given) to a foreign country, a non-US Citizen/National or a non- Permanent US Resident without a valid State/Commerce Department export authorization. It is the responsibility of (the Purchaser) to determine what the applicable requirements may be, to obtain all necessary authorizations, licenses or approvals and are subject to both review and acceptance by MilSpec.parts. The use, disposition, export and re-export of the property covered or included in this sale, order or quote is subject to the provisions of law referenced in End-Use Certificate DLA form 1822, DEC 2001, including, but not limited to, the Arms Export Control Act (22 USC 2751 et seq.); Export Administration Act of 1979 (50 USC App. 2401 et seq.) as contained under Executive Order 12924; International Traffic in Arms Regulations (22 CFR 120 et seq.); Export Administration Regulations (15 CFR 730 et seq.); Foreign Assets Control Regulations (31 CFR 500 et seq.) and the Espionage Act (18 USC 793 et seq.)

More MIL-S-18729 Parts

MIL-S-18729 Flat Washer

Spec. Type Spec. Color Gloss Size
Material document and classification MIL-S-18729

Array Properties

  • NSN:
    Array
  • Description:
    Flat Washer
  • Shelf Life:
    N/A
  • DEMIL:
    NO
  • UOM:
    1 EA
  • Cross Sectional Shape:
    Rectangular
  • Hole Diameter:
    Between 0.314 inches and 0.318 inches
  • Edge Shape:
    Round
  • Center Hole Shape:
    1 round
  • Thickness:
    Between 0.057 inches and 0.069 inches
  • Overall Diameter:
    Between 0.575 inches and 0.585 inches
  • Hardness Rating:
    Between 38.0 rockwell c and 45.0 rockwell c
  • Surface Finish:
    0.125 microinches all surfaces
  • Material:
    Steel comp 4130
  • Material Specification:
    Mil-s-18729 military specification single material response
  • Surface Treatment:
    Cadmium and chromate
  • Surface Treatment Specification:
    Qq-p-416 ty2 cl 2 federal specification single treatment response
Manufacturers and Part Numbers
Part Number
Brand
4D0028P5
Boeing Company
Major Organizational Entities (MOE)
Entity
MOE Code
MOE Rule
PICA
DSOR
User:
DEPARTMENT OF THE AIR FORCE Dept. of the Air Force
MOE_CD:
DF
MOE_RL:
FBB5
PICA:
TB
DSOR:
Part Identification
INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A
Material and Special Handling
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
Hazmat (HMIC): N
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious Metals (PMIC): A
Item does not contain precious metal.
Criticality (CRITL): X
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Packaging and Dimensions
Package Size
Package Weight
Part Weight
Part Dimensions (approx.)
Pack Size:
--
Pack Weight:
--
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
Container:
10
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg.
LVL A
LVL B
LVL C
SPC Mkg.:
LVL A:
E
LVL B:
B
LVL C:
CUSH
MOP
CATEG.
PRESS MAT
CUSH:
00
MOP:
10
CATEG.:
PRESS MAT:
00
WRAP MAT
ICQ
THK
TOS
UCL
WRAP MAT:
00
ICQ:
YYY
THK:
0
TOS:
UCL:
Packaging Code Definitions
LVL A Code (LVL_A):E
Packing shall be accomplished to meet the performance test requirements of astm-d4169, distribution cycle 18, assurance level 1.
LVL B Code (LVL_B): B
Procedure Indicator Code (OPI): O
Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.
Special Markings Code (SPC MKG):
Method of Preservation (MOP): 10
Physical protection.
Cushion Material (CUSH): 00
No requirement.
Preservation Material (PRESS MAT): 00
No requirement.