BL634 — CHAIN,LEAF

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

BL634: CHAIN,LEAF.

The CHAIN,LEAF is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 BOLT, head_style: FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER), grip_length: 0.220 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, shank_style: THREADED SELF-PLUGGING SHANK W/SLEEVE, shank_diameter: 0.1970 INCHES MINIMUM AND 0.1990 INCHES MAXIMUM IN, expansion_device: THREADED STEM. This part is cataloged in the U.S.

Government catalog under NSN 4010-00-145-8587, 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

BL634

NSN: 4010-00-145-8587
NIINs: 001458587, 011318494
FSC: 4010 — Chain and Wire Rope
CAGE: 76474 — EMERSON POWER TRANSMISSION CORPORATION DIV EPT (USA)

SPECIFICATIONS

material	TITANIUM ALLOY UNS R56400 BOLT
head_style	FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER)
grip_length	0.220 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
shank_style	THREADED SELF-PLUGGING SHANK W/SLEEVE
shank_diameter	0.1970 INCHES MINIMUM AND 0.1990 INCHES MAXIMUM IN
expansion_device	THREADED STEM
countersink_angle	101.0 DEGREES MAXIMUM
head_major_diameter	0.342 INCHES MINIMUM IN
material_document_and_classification	AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE BOLT
NSN	4010-00-145-8587

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 2

6600-20Reference document

Same NSN cross-reference

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

31-46640Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BL634?

BL634 is a CHAIN,LEAF.

What parts can replace BL634?

There are 2 known substitutes for BL634: 6600-20, 31-46640. Substitute compatibility should be verified for your specific system.

What is the NSN for BL634?

BL634 is cataloged in the U.S. Government catalog under NSN 4010-00-145-8587. This indicates validated use in U.S. government and defense supply chains.

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BL634 — CHAIN,LEAF

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