HR240-4-7A Close Tolerance Screw
5305-01-327-9693
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Official Item Classification
- Name
- Close Tolerance Screw
- Part Number
- HR240-4-7A
- (NSN) National Stock Number
- 5305-01-327-9693
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 29294
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 10/25/1990 (35 years ago)
flat countersunk head style, 0.848 inches minimum and 0.878 inches maximum fastener length, 0.425 inches nominal thread length, 3a thread class, right-hand thread direction
Specs & Compatibility
3a
right-hand
0.425 inches nominal
0.848 inches minimum and 0.878 inches maximum
flat countersunk
0.449 inches minimum and 0.507 inches maximum
0.2485 inches minimum and 0.2495 inches maximum
offset cruciform (torque set)
0.250 inches
0.428 inches minimum and 0.448 inches maximum
28
160000 pounds per square inch
99.0 degrees minimum and 101.0 degrees maximum
32.0 microinches bearing surface of head
32.0 microinches grip
32.0 microinches threads
titanium alloy uns r56400 overall
ams4928 assn std single material response or ams4967 assn std single material response overall
aluminum overall
nas4006 assn std single treatment response overall
unjf
Regulatory Compliance
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0029294
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