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1548766-25 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1548766-25: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, surface_finish: 63.0 MICROINCHES OVERALL, first_end_style: ROUND, hardness_rating: 270.0 BRINELL STANDARD MINIMUM AND 295.0 BRINELL STANDARD MAXIMUM OVERALL, surface_treatment: PHOSPHATE AND LUBRICANT OVERALL, pin_overall_length: 0.776 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-227-2903, 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
1548766-25
NSN: 5315-01-227-2903
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
surface_finish63.0 MICROINCHES OVERALL
first_end_styleROUND
hardness_rating270.0 BRINELL STANDARD MINIMUM AND 295.0 BRINELL STANDARD MAXIMUM OVERALL
surface_treatmentPHOSPHATE AND LUBRICANT OVERALL
pin_overall_length0.776 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN
pin_overall_diameter0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN
first_end_counterbore_depth0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
first_end_counterbore_diameter0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
material_document_and_classificationSUB: OD8853,TYPE D,GRADE I,CLASS A MFR REF SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationMIL-P-16232E MIL SPEC 1ST TREATMENT RESPONSE AND MIL-L-25504 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
NSN5315-01-227-2903
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1548766-25 · 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 FINISH: 63.0 MICROINCHES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232E MIL SPEC 1ST TREATMENT RESPONSE AND MIL-L-25504 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
FIRST END COUNTERBORE DIAMETER: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
•
FIRST END STYLE: ROUND
•
HARDNESS RATING: 270.0 BRINELL STANDARD MINIMUM AND 295.0 BRINELL STANDARD MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SUB: OD8853,TYPE D,GRADE I,CLASS A MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.776 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232E MIL SPEC 1ST TREATMENT RESPONSE AND MIL-L-25504 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
FIRST END COUNTERBORE DIAMETER0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
FIRST END STYLEROUND
HARDNESS RATING270.0 BRINELL STANDARD MINIMUM AND 295.0 BRINELL STANDARD MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSUB: OD8853,TYPE D,GRADE I,CLASS A MFR REF SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.776 INCHES MINIMUM AND 0.796 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENTPHOSPHATE AND LUBRICANT 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

No substitute or cross-reference records for this part.

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 1548766-25?
1548766-25 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for 1548766-25?
1548766-25 is cataloged in the U.S. Government catalog under NSN 5315-01-227-2903. 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.