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493491 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

493491: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN, diameter: 0.2188 INCHES MINIMUM AND 0.2192 INCHES MAXIMUM IN, material: STEEL COMP 1095 OVERALL, head_style: FLAT FILLISTER, style_designator: STRAIGHT, pin_head_diameter: 0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-050-7658, 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
493491
NSN: 5315-00-050-7658
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
height0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
diameter0.2188 INCHES MINIMUM AND 0.2192 INCHES MAXIMUM IN
materialSTEEL COMP 1095 OVERALL
head_styleFLAT FILLISTER
style_designatorSTRAIGHT
pin_head_diameter0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
under_head_length0.410 INCHES NOMINAL IN
material_document_and_classificationAMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-050-7658
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 493491 · 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
•
UNDER HEAD LENGTH: 0.410 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.2188 INCHES MINIMUM AND 0.2192 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT FILLISTER
•
HEIGHT: 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1095 OVERALL
TECHNICAL CHARACTERISTICS
UNDER HEAD LENGTH0.410 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.2188 INCHES MINIMUM AND 0.2192 INCHES MAXIMUM IN
HEAD STYLEFLAT FILLISTER
HEIGHT0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1095 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 493491?
493491 is a PIN,STRAIGHT,HEADED.
What is the NSN for 493491?
493491 is cataloged in the U.S. Government catalog under NSN 5315-00-050-7658. 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.