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MS20253P1-645 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS20253P1-645: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL, first_end_style: SQUARE, surface_treatment: CADMIUM AND CHROMATE OVERALL, pin_overall_length: 6.435 INCHES MINIMUM AND 6.465 INCHES MAXIMUM IN, pin_overall_diameter: 0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN, supplementary_features: P/O P/N MS20257-1-645 HINGE,BUTT ALTERED. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-178-9701, 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
MS20253P1-645
NSN: 5315-01-178-9701
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
first_end_styleSQUARE
surface_treatmentCADMIUM AND CHROMATE OVERALL
pin_overall_length6.435 INCHES MINIMUM AND 6.465 INCHES MAXIMUM IN
pin_overall_diameter0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN
supplementary_featuresP/O P/N MS20257-1-645 HINGE,BUTT ALTERED
specification/standard_data96906-MS20253 GOVERNMENT STANDARD
material_document_and_classificationASTM A580 ASSN STD ALL MATERIAL RESPONSES OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-178-9701
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS20253P1-645 · 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: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: SQUARE
•
SUPPLEMENTARY FEATURES: P/O P/N MS20257-1-645 HINGE,BUTT ALTERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A580 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
PIN OVERALL DIAMETER: 0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 6.435 INCHES MINIMUM AND 6.465 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SPECIFICATION/STANDARD DATA: 96906-MS20253 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLESQUARE
SUPPLEMENTARY FEATURESP/O P/N MS20257-1-645 HINGE,BUTT ALTERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A580 ASSN STD ALL MATERIAL RESPONSES OVERALL
PIN OVERALL DIAMETER0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN
PIN OVERALL LENGTH6.435 INCHES MINIMUM AND 6.465 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SPECIFICATION/STANDARD DATA96906-MS20253 GOVERNMENT STANDARD
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 3
16610259-006Reference document
Same NSN cross-reference
Reference document — Secondary reference
16610259-003Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS20253Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS20253P1-645?
MS20253P1-645 is a PIN,STRAIGHT,HEADLESS.
What parts can replace MS20253P1-645?
There are 3 known substitutes for MS20253P1-645: 16610259-006, 16610259-003, SAE-AS20253. Substitute compatibility should be verified for your specific system.
What is the NSN for MS20253P1-645?
MS20253P1-645 is cataloged in the U.S. Government catalog under NSN 5315-01-178-9701. 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.