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H643-7003-52 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H643-7003-52: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 1.180 INCHES NOMINAL IN, diameter: 0.436 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN, material: COPPER ALLOY 510 OVERALL, head_style: DEE CHAMFER, chamfer_length: 0.030 INCHES NOMINAL IN, style_designator: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-486-7562, 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
H643-7003-52
NSN: 5315-01-486-7562
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
height1.180 INCHES NOMINAL IN
diameter0.436 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
materialCOPPER ALLOY 510 OVERALL
head_styleDEE CHAMFER
chamfer_length0.030 INCHES NOMINAL IN
style_designatorSTRAIGHT
pin_chamfer_angle45.0 DEGREES NOMINAL
pin_head_diameter0.616 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
under_head_length1.200 INCHES NOMINAL IN
end_item_identificationCOMBINED INDUCTION/EXHAUST OPERATOR GEAR ASSY; SSN 688
distance_from_centerline_to_flat0.300 INCHES NOMINAL IN
material_document_and_classificationQQ-B-750, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-486-7562
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H643-7003-52 · 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
•
CHAMFER LENGTH: 0.030 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.300 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 1.200 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.616 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-750, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.436 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.030 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.300 INCHES NOMINAL IN
UNDER HEAD LENGTH1.200 INCHES NOMINAL IN
PIN CHAMFER ANGLE45.0 DEGREES NOMINAL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.616 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-750, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.436 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
HEAD STYLEDEE CHAMFER
HEIGHT1.180 INCHES NOMINAL 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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H643-7003-52?
H643-7003-52 is a PIN,STRAIGHT,HEADED.
What is the NSN for H643-7003-52?
H643-7003-52 is cataloged in the U.S. Government catalog under NSN 5315-01-486-7562. 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.