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1532279 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1532279: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, surface_finish: 32.0 MICROINCHES OVERALL, first_end_style: SQUARE, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL, surface_treatment: PHOSPHATE MANGANESE OVERALL, pin_overall_length: 3.775 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-148-5954, 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
1532279
NSN: 5315-01-148-5954
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 4140 OVERALL
surface_finish32.0 MICROINCHES OVERALL
first_end_styleSQUARE
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
special_featuresBOTH ENDS DRILLED 0.154 IN. DIA,0.500 IN. MIN,0.562 IN. MAX DEEP,COUNTERSINK 90 DEG MIN,100 DEG MAX TO 0.221 IN. DIA,INTERNALLY THREADED 10-24NC-2B 0.250 IN. DP IN
surface_treatmentPHOSPHATE MANGANESE OVERALL
pin_overall_length3.775 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
pin_overall_diameter0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationDOD-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-148-5954
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1532279 · 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: 32.0 MICROINCHES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
PIN OVERALL DIAMETER: 0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 3.775 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLESQUARE
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
PIN OVERALL DIAMETER0.3122 INCHES MINIMUM AND 0.3124 INCHES MAXIMUM IN
PIN OVERALL LENGTH3.775 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SPECIAL FEATURESBOTH ENDS DRILLED 0.154 IN. DIA,0.500 IN. MIN,0.562 IN. MAX DEEP,COUNTERSINK 90 DEG MIN,100 DEG MAX TO 0.221 IN. DIA,INTERNALLY THREADED 10-24NC-2B 0.250 IN. DP IN
SURFACE TREATMENTPHOSPHATE MANGANESE OVERALL
MATERIALSTEEL COMP 4140 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 1
5315PL0930478Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 1532279?
1532279 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 1532279?
There is 1 known substitute for 1532279: 5315PL0930478. Substitute compatibility should be verified for your specific system.
What is the NSN for 1532279?
1532279 is cataloged in the U.S. Government catalog under NSN 5315-01-148-5954. 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.