Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW
The ASME B18.21.1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-184-9161, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
ASME B18.21.1
NSN:5310-00-184-9161 FSC:5310 CAGE:81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
Part Number
ASME B18.21.1
NSN
5310-00-184-9161
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL THICKNESS: 0.042 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 COMPOSITION AND A GRADE AND 1 STYLE AND 1 TYPE
•
OUTSIDE DIAMETER: 1.045 INCHES MINIMUM AND 1.071 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.640 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS
0.042 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
STYLE DESIGNATOR
FLAT INTERNAL TEETH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA
2 COMPOSITION AND A GRADE AND 1 STYLE AND 1 TYPE
OUTSIDE DIAMETER
1.045 INCHES MINIMUM AND 1.071 INCHES MAXIMUM IN
HARDNESS RATING
40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
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FREQUENTLY ASKED QUESTIONS
What is ASME B18.21.1?
ASME B18.21.1 is a ASME B18.21.1.
What parts can replace ASME B18.21.1?
There are 9 known substitutes for ASME B18.21.1: 5310PL0716587, 10116653, MS35333-80 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ASME B18.21.1?
ASME B18.21.1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-184-9161. This indicates validated use in U.S. government and defense supply chains.
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