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53-077-375-1750 — PIN,SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

53-077-375-1750: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.385 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN, material: STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL, overall_length: 1.730 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN, shear_strength: 17600 DOUBLE POUND, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SLOTTED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-226-3780, 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
53-077-375-1750
NSN: 5315-00-226-3780
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
diameter0.385 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN
materialSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL
overall_length1.730 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN
shear_strength17600 DOUBLE POUND
hardness_rating46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPHOSPHATE ZINC OVERALL
material_thickness0.077 INCHES NOMINAL IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationDOD-P-16232,CL2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-226-3780
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 53-077-375-1750 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232,CL2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
DIAMETER: 0.385 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.077 INCHES NOMINAL IN
•
SURFACE TREATMENT: PHOSPHATE ZINC OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,CL2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.385 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN
OVERALL LENGTH1.730 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN
MATERIAL THICKNESS0.077 INCHES NOMINAL IN
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
SHEAR STRENGTH17600 DOUBLE POUND
MATERIALSTEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
775031Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MS16562-174Reference document
Same NSN cross-reference
Reference document — Secondary reference
NASM16562-174Reference document
Same NSN cross-reference
Reference document — Secondary reference
98296A542Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 53-077-375-1750?
53-077-375-1750 is a PIN,SPRING.
What parts can replace 53-077-375-1750?
There are 4 known substitutes for 53-077-375-1750: 775031, MS16562-174, NASM16562-174 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 53-077-375-1750?
53-077-375-1750 is cataloged in the U.S. Government catalog under NSN 5315-00-226-3780. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.