PartsTable
Technical Data Sheet
Download PDF

HL552-12-31 — PIN,PROTUDING TENSION HEAD

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HL552-12-31: PIN,PROTUDING TENSION HEAD.

The PIN,PROTUDING TENSION HEAD is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL,MIL-S-5000,MIL-S-5626 OR MIL-S-6049. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-232-4375, 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
HL552-12-31
NSN: 5315-00-232-4375
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73197 — HI-SHEAR CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,MIL-S-5000,MIL-S-5626 OR MIL-S-6049
NSN5315-00-232-4375
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HL552-12-31 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,MIL-S-5000,MIL-S-5626 OR MIL-S-6049
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,MIL-S-5000,MIL-S-5626 OR MIL-S-6049
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
Ready to buy HL552-12-31?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is HL552-12-31?
HL552-12-31 is a PIN,PROTUDING TENSION HEAD.
What is the NSN for HL552-12-31?
HL552-12-31 is cataloged in the U.S. Government catalog under NSN 5315-00-232-4375. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — HL552-12-31

✓ 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.