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55373 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
InLine · NUT WASHER
PRODUCT OVERVIEW

55373: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a InLine industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, surface_finish: 63.0 MICROINCHES BOTH ENDS, first_end_style: SQUARE, hardness_rating: 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL, pin_overall_length: 0.250 INCHES NOMINAL IN, pin_overall_diameter: 0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-089-5227, 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
55373
NSN: 5315-01-089-5227
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
surface_finish63.0 MICROINCHES BOTH ENDS
first_end_styleSQUARE
hardness_rating55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
pin_overall_length0.250 INCHES NOMINAL IN
pin_overall_diameter0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763,CLASS 440 C,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-089-5227
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 55373 · InLine ⚠ 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 BOTH ENDS
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 440 C,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.250 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTH ENDS
FIRST END STYLESQUARE
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 440 C,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.0936 INCHES MINIMUM AND 0.0938 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.250 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL CORROSION RESISTING 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
933B055373Reference document
Same NSN cross-reference
Reference document — Secondary 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 55373?
55373 is a PIN,STRAIGHT,HEADLESS manufactured by InLine.
What parts can replace 55373?
There is 1 known substitute for 55373: 933B055373. Substitute compatibility should be verified for your specific system.
What is the NSN for 55373?
55373 is cataloged in the U.S. Government catalog under NSN 5315-01-089-5227. This indicates validated use in U.S. government and defense supply chains.
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