NSN 5306-00-421-9136, 5306004219136
BOLT,EYE

Federal Supply Classification: FSC 5306 - Bolts
National Item Identification Number: NIIN 004219136
Codification Country: United States
Item Name Code: INC 01853
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5306-00-421-9136

National Stock Number (NSN) 5306-00-421-9136, or NIIN 004219136, (bolt,eye) was assigned December 23, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

This NSN is assigned to Item Name Code (INC) 01853. [AN EXTERNALLY THREADED DEVICE WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, WITHOUT A HEAD, BUT WITH THE UNTHREADED END EITHER BENT MORE THAN 225 DEGREES (3.925 RADIANS) OR CAST, FORGED, OR PUNCHED TO RESEMBLE AN EYE. SEE ALSO BOLT, HOOK. EXCLUDES:CONNECTOR, ROD END.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5306004219136 contains an unknown precious metal.

This information was last updated on Sep 01, 2026.

Technical Characteristics

SURFACE TREATMENT: (SFTT) UNABLE TO DECODE
MATERIAL: (MATT) STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 4037 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) UNABLE TO DECODE
DISTANCE FROM CENTER OF EYE TO SHANK END: (CRHT) INCHES MINIMUM 2.860 AND INCHES MAXIMUM 2.891
EYE INSIDE DIAMETER: (AATK) INCHES MINIMUM 0.190 AND INCHES MAXIMUM 0.192
EYE OUTSIDE WIDTH: (CWXM) INCHES MINIMUM 0.484 AND INCHES MAXIMUM 0.516
EYE STOCK DIAMETER: (AATZ) INCHES NOMINAL 0.125
EYE STOCK THICKNESS: (AAUA) INCHES MINIMUM 0.120 AND INCHES MAXIMUM 0.130
HARDNESS RATING: (CQFM) OVERALL ROCKWELL C MINIMUM 26.0 AND ROCKWELL C MAXIMUM 32.0
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-6049 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-6050 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-6098 OR MIL SPEC 5TH MATERIAL RESPONSE -IL-S-6758 OR ASSN STD 6TH MATERIAL RESPONSE A-S 6300
MATERIAL: (MATT) OVERALL STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037
MINIMUM TENSILE STRENGTH: (CQBC) POUNDS PER SQUARE INCH 125000
NOMINAL THREAD DIAMETER: (AHYM) INCHES 0.250
OVERALL LENGTH: (ABHP) INCHES MINIMUM 3.140 AND INCHES MAXIMUM 3.170
SHANK LENGTH: (AATR) INCHES MINIMUM 2.390 AND INCHES MAXIMUM 2.437
SHOULDER DIAMETER: (AAVH) INCHES MINIMUM 0.484 AND INCHES MAXIMUM 0.516
SHOULDER THICKNESS: (AATP) INCHES MINIMUM 0.062 AND INCHES MAXIMUM 0.094
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLASS 3
SURFACE TREATMENT: (SFTT) OVERALL CADMIUM
THREAD LENGTH: (AASA) INCHES MINIMUM 0.453 AND INCHES MAXIMUM 0.500
THREAD CLASS: (AAJD) 3A
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH: (CMLP) 28
THREAD SERIES DESIGNATOR: (THSD) UNF