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2493774 — PLUG,MACHINE THREAD

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2493774: PLUG,MACHINE THREAD.

The PLUG,MACHINE THREAD is a the manufacturer industrial component. Key specifications include height: 0.078 INCHES NOMINAL IN, diameter: 0.4996 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, material: STEEL COMP 302 OVERALL, head_style: FLAT CHAMFER, chamfer_length: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES HEAD BEARING SURFACE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-043-4592, 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
2493774
NSN: 5315-00-043-4592
NIINs: 000434592, 011363598
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
height0.078 INCHES NOMINAL IN
diameter0.4996 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
materialSTEEL COMP 302 OVERALL
head_styleFLAT CHAMFER
chamfer_length0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES HEAD BEARING SURFACE
style_designatorSTRAIGHT
pin_chamfer_angle30.0 DEGREES NOMINAL
pin_head_diameter0.625 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
under_head_length1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-043-4592
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2493774 · 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 HEAD BEARING SURFACE
•
CHAMFER LENGTH: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-STD-171 FINISH 5.4.1. MIL STD SINGLE TREATMENT RESPONSE OVERALL
•
UNDER HEAD LENGTH: 1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
•
PIN CHAMFER ANGLE: 30.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES HEAD BEARING SURFACE
CHAMFER LENGTH0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171 FINISH 5.4.1. MIL STD SINGLE TREATMENT RESPONSE OVERALL
UNDER HEAD LENGTH1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
PIN CHAMFER ANGLE30.0 DEGREES NOMINAL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.4996 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
HEAD STYLEFLAT CHAMFER
SUBSTITUTES & CROSS-REFERENCES 1
24188Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2493774?
2493774 is a PLUG,MACHINE THREAD.
What parts can replace 2493774?
There is 1 known substitute for 2493774: 24188. Substitute compatibility should be verified for your specific system.
What is the NSN for 2493774?
2493774 is cataloged in the U.S. Government catalog under NSN 5315-00-043-4592. 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.