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53-81633-7 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

53-81633-7: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303SE OVERALL, shank_length: 0.470 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.345 INCHES NOMINAL IN, overall_length: 1.220 INCHES NOMINAL IN, shank_diameter: 0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-477-8860, 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
53-81633-7
NSN: 5315-00-477-8860
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 303SE OVERALL
shank_length0.470 INCHES NOMINAL IN
thread_class3A A
thread_length0.345 INCHES NOMINAL IN
overall_length1.220 INCHES NOMINAL IN
shank_diameter0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
surface_finish125.000 MICROINCHES OVERALL
first_end_stylePOINTED
second_end_styleSQUARE
style_designatorSHOULDER
thread_directionRIGHT-HAND
first_end_locationSHANK END
NSN5315-00-477-8860
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 53-81633-7 · 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
•
SHANK DIAMETER: 0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
SECOND SHANK DIAMETER: 0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
SURFACE FINISH: 125.000 MICROINCHES OVERALL
•
FIRST END TAPER LENGTH: 0.335 INCHES NOMINAL IN
•
FIRST END LOCATION: SHANK END
•
THREAD LENGTH: 0.345 INCHES NOMINAL IN
•
FIRST END STYLE: POINTED
•
SHANK LENGTH: 0.470 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
SECOND SHANK DIAMETER0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
SURFACE FINISH125.000 MICROINCHES OVERALL
FIRST END TAPER LENGTH0.335 INCHES NOMINAL IN
FIRST END LOCATIONSHANK END
THREAD LENGTH0.345 INCHES NOMINAL IN
FIRST END STYLEPOINTED
SHANK LENGTH0.470 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
OVERALL LENGTH1.220 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 53-81633-7?
53-81633-7 is a PIN,SHOULDER,HEADLESS.
What is the NSN for 53-81633-7?
53-81633-7 is cataloged in the U.S. Government catalog under NSN 5315-00-477-8860. 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.