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2593784PC404 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2593784PC404: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING OVERALL, overall_length: 1.281 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN, surface_finish: 250.0 MICROINCHES OVERALL, undercut_width: 0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN, first_end_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-175-3359, 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
2593784PC404
NSN: 5315-01-175-3359
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
diameter0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
materialSTEEL CORROSION RESISTING OVERALL
overall_length1.281 INCHES MINIMUM AND 1.291 INCHES MAXIMUM IN
surface_finish250.0 MICROINCHES OVERALL
undercut_width0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
first_end_styleSQUARE
hardness_rating36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
effective_length0.968 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN
style_designatorGROOVE
surface_treatmentPASSIVATE OVERALL
undercut_diameter0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
NSN5315-01-175-3359
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2593784PC404 · 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: 250.0 MICROINCHES OVERALL
•
UNDERCUT WIDTH: 0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 TY 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS
SURFACE FINISH250.0 MICROINCHES OVERALL
UNDERCUT WIDTH0.052 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 TY 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLESQUARE
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 630,17-4-PH UNS S-17400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.372 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
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
2593784-404Reference 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 2593784PC404?
2593784PC404 is a PIN,GROOVED,HEADLESS.
What parts can replace 2593784PC404?
There is 1 known substitute for 2593784PC404: 2593784-404. Substitute compatibility should be verified for your specific system.
What is the NSN for 2593784PC404?
2593784PC404 is cataloged in the U.S. Government catalog under NSN 5315-01-175-3359. 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.