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5548045 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5548045: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN, overall_length: 3.060 INCHES NOMINAL3.060 INCHES NOMINAL3.060 INCHES NOMINAL IN, first_end_style: CHAMFEREDCHAMFEREDCHAMFERED, effective_length: 2.687 INCHES NOMINAL2.687 INCHES NOMINAL2.687 INCHES NOMINAL IN, style_designator: GROOVEGROOVEGROOVE, first_end_location: CHAMFERED ENDCHAMFERED ENDCHAMFERED END. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-330-0836, 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
5548045
NSN: 5315-01-330-0836
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
overall_length3.060 INCHES NOMINAL3.060 INCHES NOMINAL3.060 INCHES NOMINAL IN
undercut_width0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM IN
first_end_styleCHAMFEREDCHAMFEREDCHAMFERED
effective_length2.687 INCHES NOMINAL2.687 INCHES NOMINAL2.687 INCHES NOMINAL IN
style_designatorGROOVEGROOVEGROOVE
undercut_diameter0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM IN
first_end_locationCHAMFERED ENDCHAMFERED ENDCHAMFERED END
first_end_taper_angle45.0 DEGREES NOMINAL45.0 DEGREES NOMINAL45.0 DEGREES NOMINAL
second_undercut_width0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM IN
first_end_taper_length0.045 INCHES NOMINAL0.045 INCHES NOMINAL0.045 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICALIDENTICALIDENTICAL
NSN5315-01-330-0836
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5548045 · 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: 0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.045 INCHES NOMINAL0.045 INCHES NOMINAL0.045 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM IN
•
FIRST END LOCATION: CHAMFERED ENDCHAMFERED ENDCHAMFERED END
•
FIRST END STYLE: CHAMFEREDCHAMFEREDCHAMFERED
•
STYLE DESIGNATOR: GROOVEGROOVEGROOVE
•
DIAMETER: 0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM0.032 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.045 INCHES NOMINAL0.045 INCHES NOMINAL0.045 INCHES NOMINAL IN
UNDERCUT DIAMETER0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.350 INCHES MINIMUM AND 0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM0.354 INCHES MAXIMUM IN
FIRST END LOCATIONCHAMFERED ENDCHAMFERED ENDCHAMFERED END
FIRST END STYLECHAMFEREDCHAMFEREDCHAMFERED
STYLE DESIGNATORGROOVEGROOVEGROOVE
DIAMETER0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
OVERALL LENGTH3.060 INCHES NOMINAL3.060 INCHES NOMINAL3.060 INCHES NOMINAL IN
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL45.0 DEGREES NOMINAL45.0 DEGREES NOMINAL
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICALIDENTICALIDENTICAL
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 5548045?
5548045 is a PIN,GROOVED,HEADLESS.
What is the NSN for 5548045?
5548045 is cataloged in the U.S. Government catalog under NSN 5315-01-330-0836. 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.