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643-6737-001 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

643-6737-001: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN, diameter: 0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.122 INCHES MAXIMUM0.122 INCHES MAXIMUM IN, end_radius: 0.015 INCHES NOMINAL0.015 INCHES NOMINAL IN, head_style: HEXAGONHEXAGON, special_features: 0.086-56 UNC-2B BY 0.250 IN. DEEP THRU HEAD OF PIN0.086-56 UNC-2B BY 0.250 IN.

DEEP THRU HEAD OF PIN IN, style_designator: STRAIGHTSTRAIGHT. This part is cataloged in the U.S. Government catalog under NSN 5315-01-333-5728, 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
643-6737-001
NSN: 5315-01-333-5728
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
height0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN
diameter0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.122 INCHES MAXIMUM0.122 INCHES MAXIMUM IN
end_radius0.015 INCHES NOMINAL0.015 INCHES NOMINAL IN
head_styleHEXAGONHEXAGON
special_features0.086-56 UNC-2B BY 0.250 IN. DEEP THRU HEAD OF PIN0.086-56 UNC-2B BY 0.250 IN. DEEP THRU HEAD OF PIN IN
style_designatorSTRAIGHTSTRAIGHT
under_head_length0.410 INCHES NOMINAL0.410 INCHES NOMINAL IN
width_across_flats0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN
NSN5315-01-333-5728
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 643-6737-001 · 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
•
WIDTH ACROSS FLATS: 0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 0.410 INCHES NOMINAL0.410 INCHES NOMINAL IN
•
END RADIUS: 0.015 INCHES NOMINAL0.015 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHTSTRAIGHT
•
DIAMETER: 0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.122 INCHES MAXIMUM0.122 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGONHEXAGON
•
HEIGHT: 0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN
UNDER HEAD LENGTH0.410 INCHES NOMINAL0.410 INCHES NOMINAL IN
END RADIUS0.015 INCHES NOMINAL0.015 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHTSTRAIGHT
DIAMETER0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.122 INCHES MAXIMUM0.122 INCHES MAXIMUM IN
HEAD STYLEHEXAGONHEXAGON
HEIGHT0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN
SPECIAL FEATURES0.086-56 UNC-2B BY 0.250 IN. DEEP THRU HEAD OF PIN0.086-56 UNC-2B BY 0.250 IN. DEEP THRU HEAD OF PIN 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

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 643-6737-001?
643-6737-001 is a PIN,STRAIGHT,HEADED.
What is the NSN for 643-6737-001?
643-6737-001 is cataloged in the U.S. Government catalog under NSN 5315-01-333-5728. 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.