HL557-6-4 — PIN-RIVET

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

HL557-6-4: PIN-RIVET.

The PIN-RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL, head_style: FLUSH COUNTERSUNK, grip_length: 0.275 INCHES MAXIMUM IN, shank_style: PIN-RIVET, STRAIGHT, THREADED, thread_class: 3A A, shank_diameter: 0.2016 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5320-00-414-6171, 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

HL557-6-4

NSN: 5320-00-414-6171
NIINs: 004146171, 010062157
FSC: 5320 — Rivets
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)

SPECIFICATIONS

material	STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
head_style	FLUSH COUNTERSUNK
grip_length	0.275 INCHES MAXIMUM IN
shank_style	PIN-RIVET, STRAIGHT, THREADED
thread_class	3A A
shank_diameter	0.2016 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM IN
shear_strength	95000 SINGLE POUNDS PER SQUARE INCH
fastener_length	0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	CADMIUM OVERALL
head_major_diameter	0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN
NSN	5320-00-414-6171

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 2

HL557-6-7Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

AICL-249AX6C7Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 HL557-6-4?

HL557-6-4 is a PIN-RIVET.

What parts can replace HL557-6-4?

There are 2 known substitutes for HL557-6-4: HL557-6-7, AICL-249AX6C7. Substitute compatibility should be verified for your specific system.

What is the NSN for HL557-6-4?

HL557-6-4 is cataloged in the U.S. Government catalog under NSN 5320-00-414-6171. This indicates validated use in U.S. government and defense supply chains.

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