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6539799-1 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6539799-1: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 1.246 INCHES MINIMUM AND 1.246 INCHES MINIMUM AND 1.248 INCHES MAXIMUM1.248 INCHES MAXIMUM IN, overall_length: 1.830 INCHES NOMINAL1.830 INCHES NOMINAL IN, undercut_width: 0.056 INCHES MINIMUM AND 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN, first_end_style: SQUARESQUARE, effective_length: 1.532 INCHES NOMINAL1.532 INCHES NOMINAL IN, style_designator: GROOVEGROOVE. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-369-0847, 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
6539799-1
NSN: 5315-01-369-0847
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter1.246 INCHES MINIMUM AND 1.246 INCHES MINIMUM AND 1.248 INCHES MAXIMUM1.248 INCHES MAXIMUM IN
overall_length1.830 INCHES NOMINAL1.830 INCHES NOMINAL IN
undercut_width0.056 INCHES MINIMUM AND 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
first_end_styleSQUARESQUARE
effective_length1.532 INCHES NOMINAL1.532 INCHES NOMINAL IN
style_designatorGROOVEGROOVE
undercut_diameter1.172 INCHES MINIMUM AND 1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM1.180 INCHES MAXIMUM IN
first_end_locationBOTH ENDSBOTH ENDS
first_hole_diameter0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
second_undercut_width0.056 INCHES MINIMUM AND 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
hole_arrangement_styleDRILLED THRU CENTERDRILLED THRU CENTER
second_end_relationship_with_first_endIDENTICALIDENTICAL
NSN5315-01-369-0847
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6539799-1 · 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
•
UNDERCUT WIDTH: 0.056 INCHES MINIMUM AND 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
•
UNDERCUT DIAMETER: 1.172 INCHES MINIMUM AND 1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM1.180 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDSBOTH ENDS
•
HOLE ARRANGEMENT STYLE: DRILLED THRU CENTERDRILLED THRU CENTER
•
FIRST END STYLE: SQUARESQUARE
•
FIRST HOLE DIAMETER: 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: GROOVEGROOVE
•
DIAMETER: 1.246 INCHES MINIMUM AND 1.246 INCHES MINIMUM AND 1.248 INCHES MAXIMUM1.248 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.056 INCHES MINIMUM AND 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
UNDERCUT DIAMETER1.172 INCHES MINIMUM AND 1.172 INCHES MINIMUM AND 1.180 INCHES MAXIMUM1.180 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDSBOTH ENDS
HOLE ARRANGEMENT STYLEDRILLED THRU CENTERDRILLED THRU CENTER
FIRST END STYLESQUARESQUARE
FIRST HOLE DIAMETER0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
STYLE DESIGNATORGROOVEGROOVE
DIAMETER1.246 INCHES MINIMUM AND 1.246 INCHES MINIMUM AND 1.248 INCHES MAXIMUM1.248 INCHES MAXIMUM IN
OVERALL LENGTH1.830 INCHES NOMINAL1.830 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICALIDENTICAL
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6539799-1?
6539799-1 is a PIN,GROOVED,HEADLESS.
What is the NSN for 6539799-1?
6539799-1 is cataloged in the U.S. Government catalog under NSN 5315-01-369-0847. 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.