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Technical Data Sheet
PartsTable / COMPONENT / 2122703-76
2122703-76 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
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 PIN,HOLLOW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, first_end_style: CHAMFERED W/THRU HOLE, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL, inside_diameter: 0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN, special_features: 0.164-32 UNC 2B THD 0.345 IN. MIN 0.405 IN.

MAX DP ON GROOVE END ONLY IN, surface_treatment: PHOSPHATE MANGANESE OVERALL. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-244-7039, 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
2122703-76
NSN: 5315-01-244-7039
FSC: 5315
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
first_end_styleCHAMFERED W/THRU HOLE
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
inside_diameter0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
special_features0.164-32 UNC 2B THD 0.345 IN. MIN 0.405 IN. MAX DP ON GROOVE END ONLY IN
surface_treatmentPHOSPHATE MANGANESE OVERALL
pin_overall_length1.375 INCHES NOMINAL IN
pin_overall_diameter0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
first_end_taper_angle10.0 DEGREES MINIMUM AND 15.0 DEGREES MAXIMUM
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationDOD-P-16232 TY M CL 1 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-244-7039
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2122703-76 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL: STEEL COMP 4140 OVERALL
•
FIRST END TAPER ANGLE: 10.0 DEGREES MINIMUM AND 15.0 DEGREES MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL LENGTH: 1.375 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232 TY M CL 1 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: PHOSPHATE MANGANESE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
MATERIALSTEEL COMP 4140 OVERALL
FIRST END TAPER ANGLE10.0 DEGREES MINIMUM AND 15.0 DEGREES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL LENGTH1.375 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232 TY M CL 1 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE MANGANESE OVERALL
PIN OVERALL DIAMETER0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
INSIDE DIAMETER0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
0376Interchangeable
interchangeable cross-reference
interchangeable
2K40D1500Interchangeable
interchangeable cross-reference
interchangeable
10378Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2122703-76?
2122703-76 is a PIN,HOLLOW.
What parts can replace 2122703-76?
There are 3 known substitutes for 2122703-76: 0376, 2K40D1500, 10378. Substitute compatibility should be verified for your specific system.
What is the NSN for 2122703-76?
2122703-76 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-244-7039. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026